a bit more organization and cleanup

src/Containers/DocumentTags/BodyTagInterface.php

@@ -2,10 +2,9 @@
 
 namespace ByJoby\HTML\Containers\DocumentTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\ContentCategories\SectioningRoot;
 use ByJoby\HTML\Tags\ContainerTagInterface;
+use ByJoby\HTML\Tags\TagInterface;
 
-interface BodyTagInterface extends ContainerTagInterface, SectioningRoot, FlowContent
+interface BodyTagInterface extends ContainerTagInterface, TagInterface
 {
-}
+}

src/Containers/DocumentTags/TitleTagInterface.php

@@ -2,9 +2,10 @@
 
 namespace ByJoby\HTML\Containers\DocumentTags;
 
-use ByJoby\HTML\ContentCategories\MetadataContent;
-use ByJoby\HTML\Tags\ContentTagInterface;
+use Stringable;
 
-interface TitleTagInterface extends ContentTagInterface, MetadataContent
+interface TitleTagInterface
 {
-}
+    public function setContent(string|Stringable $content): static;
+    public function content(): string|Stringable;
+}

src/ContentCategories/FlowContent.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace ByJoby\HTML\ContentCategories;
-
-interface FlowContent
-{
-}

src/ContentCategories/HeadingContent.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace ByJoby\HTML\ContentCategories;
-
-interface HeadingContent extends FlowContent
-{
-}

src/ContentCategories/MetadataContent.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace ByJoby\HTML\ContentCategories;
-
-interface MetadataContent
-{
-}

src/ContentCategories/PhrasingContent.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace ByJoby\HTML\ContentCategories;
-
-interface PhrasingContent extends FlowContent
-{
-}

src/ContentCategories/SectioningContent.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace ByJoby\HTML\ContentCategories;
-
-interface SectioningContent extends FlowContent
-{
-}

src/ContentCategories/SectioningRoot.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace ByJoby\HTML\ContentCategories;
-
-interface SectioningRoot
-{
-}

src/DisplayTypes/DisplayBlock.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace ByJoby\HTML\DisplayTypes;
-
-interface DisplayBlock
-{
-}

src/DisplayTypes/DisplayContents.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace ByJoby\HTML\DisplayTypes;
-
-interface DisplayContents
-{
-}

src/DisplayTypes/DisplayInline.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace ByJoby\HTML\DisplayTypes;
-
-interface DisplayInline
-{
-}

src/DisplayTypes/DisplayInlineBlock.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace ByJoby\HTML\DisplayTypes;
-
-interface DisplayInlineBlock
-{
-}

src/DisplayTypes/DisplayNone.php

@@ -1,7 +0,0 @@
-<?php
-
-namespace ByJoby\HTML\DisplayTypes;
-
-interface DisplayNone
-{
-}

src/Html5/ContentSectioningTags/AbstractHeaderTag.php

@@ -5,6 +5,6 @@ namespace ByJoby\HTML\Html5\ContentSectioningTags;
 use ByJoby\HTML\ContentCategories\HeadingContent;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
-abstract class AbstractHeaderTag extends AbstractContainerTag implements HeadingContent
+abstract class AbstractHeaderTag extends AbstractContainerTag
 {
-}
+}

src/Html5/ContentSectioningTags/AddressTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\ContentSectioningTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -20,7 +18,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/address
  */
-class AddressTag extends AbstractContainerTag implements DisplayBlock, FlowContent
+class AddressTag extends AbstractContainerTag
 {
     const TAG = 'address';
 }

src/Html5/ContentSectioningTags/ArticleTag.php

@@ -2,9 +2,6 @@
 
 namespace ByJoby\HTML\Html5\ContentSectioningTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\ContentCategories\SectioningContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -18,7 +15,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/article
  */
-class ArticleTag extends AbstractContainerTag implements DisplayBlock, FlowContent, SectioningContent
+class ArticleTag extends AbstractContainerTag
 {
     const TAG = 'article';
 }

src/Html5/ContentSectioningTags/AsideTag.php

@@ -2,9 +2,6 @@
 
 namespace ByJoby\HTML\Html5\ContentSectioningTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\ContentCategories\SectioningContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -15,7 +12,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/aside
  */
-class AsideTag extends AbstractContainerTag implements DisplayBlock, FlowContent, SectioningContent
+class AsideTag extends AbstractContainerTag
 {
     const TAG = 'aside';
 }

src/Html5/ContentSectioningTags/FooterTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\ContentSectioningTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -15,7 +13,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/footer
  */
-class FooterTag extends AbstractContainerTag implements DisplayBlock, FlowContent
+class FooterTag extends AbstractContainerTag
 {
     const TAG = 'footer';
 }

src/Html5/ContentSectioningTags/HeaderTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\ContentSectioningTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -14,7 +12,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/header
  */
-class HeaderTag extends AbstractContainerTag implements DisplayBlock, FlowContent
+class HeaderTag extends AbstractContainerTag
 {
     const TAG = 'header';
 }

src/Html5/ContentSectioningTags/MainTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\ContentSectioningTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -15,7 +13,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/main
  */
-class MainTag extends AbstractContainerTag implements DisplayBlock, FlowContent
+class MainTag extends AbstractContainerTag
 {
     const TAG = 'main';
 }

src/Html5/ContentSectioningTags/NavTag.php

@@ -2,9 +2,6 @@
 
 namespace ByJoby\HTML\Html5\ContentSectioningTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\ContentCategories\SectioningContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -16,7 +13,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/nav
  */
-class NavTag extends AbstractContainerTag implements DisplayBlock, FlowContent, SectioningContent
+class NavTag extends AbstractContainerTag
 {
     const TAG = 'nav';
 }

src/Html5/ContentSectioningTags/SearchTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\ContentSectioningTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -18,7 +16,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/search
  */
-class SearchTag extends AbstractContainerTag implements DisplayBlock, FlowContent
+class SearchTag extends AbstractContainerTag
 {
     const TAG = 'search';
 }

src/Html5/ContentSectioningTags/SectionTag.php

@@ -2,9 +2,6 @@
 
 namespace ByJoby\HTML\Html5\ContentSectioningTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\ContentCategories\SectioningContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -15,7 +12,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/section
  */
-class SectionTag extends AbstractContainerTag implements DisplayBlock, FlowContent, SectioningContent
+class SectionTag extends AbstractContainerTag
 {
     const TAG = 'section';
 }

src/Html5/Enums/ReferrerPolicy_a.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace ByJoby\HTML\Html5\Enums;
+
+/**
+ * How much of the referrer to send when following the link.
+ *
+ * Description by Mozilla Contributors licensed under CC-BY-SA 2.5
+ * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a
+ */
+enum ReferrerPolicy_a: string
+{
+    /**
+     * DEFAULT: Send a full URL when performing a same-origin request, only send
+     * the origin when the protocol security level stays the same (HTTPS→HTTPS),
+     * and send no header to a less secure destination (HTTPS→HTTP).
+     */
+    case strictOriginWhenCrossOrigin = "strict-origin-when-cross-origin";
+    /**
+     * means that the Referer header will not be sent.
+     */
+    case noReferrer = "no-referrer";
+    /**
+     * The Referer header will not be sent to origins without TLS (HTTPS).
+     */
+    case noReferrerWhenDowngrade = "no-referrer-when-downgrade";
+    /**
+     * The sent referrer will be limited to the origin of the referring page:
+     * its scheme, host, and port.
+     */
+    case origin = "origin";
+    /**
+     * The referrer sent to other origins will be limited to the scheme, the
+     * host, and the port. Navigations on the same origin will still include the
+     * path.
+     */
+    case originWhenCrossOrigin = "origin-when-cross-origin";
+    /**
+     * A referrer will be sent for same origin, but cross-origin requests will
+     * contain no referrer information.
+     */
+    case sameOrigin = "same-origin";
+    /**
+     * Only send the origin of the document as the referrer when the protocol
+     * security level stays the same (HTTPS→HTTPS), but don't send it to a less
+     * secure destination (HTTPS→HTTP).
+     */
+    case strictOrigin = "strict-origin";
+    /**
+     * The referrer will include the origin and the path (but not the fragment,
+     * password, or username). THIS VALUE IS UNSAFE, because it leaks origins
+     * and paths from TLS-protected resources to insecure origins. 
+     */
+    case unsafeUrl = "unsafe-url";
+}

src/Html5/Html5Parser.php

@@ -13,6 +13,7 @@ class Html5Parser extends AbstractParser
     /** @var array<int,string> */
     protected $tag_namespaces = [
         '\\ByJoby\\HTML\\Html5\\Tags\\',
+        '\\ByJoby\\HTML\\Html5\\InlineTextSemantics\\',
         '\\ByJoby\\HTML\\Html5\\TextContentTags\\',
         '\\ByJoby\\HTML\\Html5\\ContentSectioningTags\\',
         '\\ByJoby\\HTML\\Html5\\DocumentTags\\',

src/Html5/InlineTextSemantics/ATag.php

@@ -0,0 +1,326 @@
+<?php
+
+namespace ByJoby\HTML\Html5\InlineTextSemantics;
+
+use ByJoby\HTML\Html5\Enums\BooleanAttribute;
+use ByJoby\HTML\Html5\Enums\BrowsingContext;
+use ByJoby\HTML\Html5\Enums\ReferrerPolicy_a;
+use ByJoby\HTML\Html5\Enums\Rel_a;
+use ByJoby\HTML\Tags\AbstractContainerTag;
+use Stringable;
+
+/**
+ * The <a> HTML element (or anchor element), with its href attribute, creates a
+ * hyperlink to web pages, files, email addresses, locations in the same page,
+ * or anything else a URL can address.
+ *
+ * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
+ * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a
+ */
+class ATag extends AbstractContainerTag
+{
+    const TAG = 'a';
+
+    /**
+     * Causes the browser to treat the linked URL as a download. Can be used
+     * with or without a filename value.
+     *
+     * @return null|string|Stringable|BooleanAttribute::true
+     */
+    public function download(): null|string|Stringable|BooleanAttribute
+    {
+        if ($this->attributes()['download'] === BooleanAttribute::true) return BooleanAttribute::true;
+        else return $this->attributes()->asString('download');
+    }
+
+    /**
+     * Causes the browser to treat the linked URL as a download. Can be used
+     * with or without a filename value.
+     *
+     * @param null|string|Stringable|BooleanAttribute $download
+     * @return static
+     */
+    public function setDownload(null|string|Stringable|BooleanAttribute $download): static
+    {
+        if ($download === BooleanAttribute::true) $this->attributes()['download'] = BooleanAttribute::true;
+        elseif ($download === BooleanAttribute::false) $this->unsetDownload();
+        elseif ($download) $this->attributes()['download'] = $download;
+        else $this->unsetDownload();
+        return $this;
+    }
+
+    /**
+     * Causes the browser to treat the linked URL as a download. Can be used
+     * with or without a filename value.
+     *
+     * @return static
+     */
+    public function unsetDownload(): static
+    {
+        unset($this->attributes()['download']);
+        return $this;
+    }
+
+    /**
+     * The URL that the hyperlink points to. Links are not restricted to
+     * HTTP-based URLs — they can use any URL scheme supported by browsers
+     *
+     * @return null|string|Stringable
+     */
+    public function href(): null|string|Stringable
+    {
+        return $this->attributes()->asString('href');
+    }
+
+    /**
+     * The URL that the hyperlink points to. Links are not restricted to
+     * HTTP-based URLs — they can use any URL scheme supported by browsers
+     *
+     * @param null|string|Stringable $href
+     * @return static
+     */
+    public function setHref(null|string|Stringable $href): static
+    {
+        if ($href) $this->attributes()['href'] = $href;
+        else $this->unsetHref();
+        return $this;
+    }
+
+    /**
+     * The URL that the hyperlink points to. Links are not restricted to
+     * HTTP-based URLs — they can use any URL scheme supported by browsers
+     *
+     * @return static
+     */
+    public function unsetHref(): static
+    {
+        $this->unsetHreflang();
+        unset($this->attributes()['href']);
+        return $this;
+    }
+
+    /**
+     * Hints at the human language of the linked URL. No built-in functionality.
+     * Allowed values are the same as the global lang attribute.
+     *
+     * @return null|string|Stringable
+     */
+    public function hreflang(): null|string|Stringable
+    {
+        return $this->attributes()->asString('hreflang');
+    }
+
+    /**
+     * Hints at the human language of the linked URL. No built-in functionality.
+     * Allowed values are the same as the global lang attribute.
+     *
+     * @param null|string|Stringable $hreflang
+     * @return static
+     */
+    public function setHreflang(null|string|Stringable $hreflang): static
+    {
+        if ($hreflang) $this->attributes()['hreflang'] = $hreflang;
+        else $this->unsetHreflang();
+        return $this;
+    }
+
+    /**
+     * Hints at the human language of the linked URL. No built-in functionality.
+     * Allowed values are the same as the global lang attribute.
+     *
+     * @return static
+     */
+    public function unsetHreflang(): static
+    {
+        unset($this->attributes()['hreflang']);
+        return $this;
+    }
+
+    /**
+     * A space-separated list of URLs. When the link is followed, the browser
+     * will send POST requests with the body PING to the URLs. Typically for
+     * tracking.
+     *
+     * @return null|string|Stringable
+     */
+    public function ping(): null|string|Stringable
+    {
+        return $this->attributes()->asString('ping');
+    }
+
+    /**
+     * A space-separated list of URLs. When the link is followed, the browser
+     * will send POST requests with the body PING to the URLs. Typically for
+     * tracking.
+     *
+     * @param null|string|Stringable $ping
+     * @return static
+     */
+    public function setPing(null|string|Stringable $ping): static
+    {
+        if ($ping) $this->attributes()['ping'] = $ping;
+        else $this->unsetPing();
+        return $this;
+    }
+
+    /**
+     * A space-separated list of URLs. When the link is followed, the browser
+     * will send POST requests with the body PING to the URLs. Typically for
+     * tracking.
+     *
+     * @return static
+     */
+    public function unsetPing(): static
+    {
+        unset($this->attributes()['ping']);
+        return $this;
+    }
+
+    /**
+     * An enum indicating which referrer to use when fetching the resource.
+     *
+     * @return null|ReferrerPolicy_a
+     */
+    public function referrerpolicy(): null|ReferrerPolicy_a
+    {
+        return $this->attributes()->asEnum('referrerpolicy', ReferrerPolicy_a::class);
+    }
+
+    /**
+     * An enum indicating which referrer to use when fetching the resource.
+     *
+     * @param null|ReferrerPolicy_a $referrerpolicy
+     * @return static
+     */
+    public function setReferrerpolicy(null|ReferrerPolicy_a $referrerpolicy): static
+    {
+        if ($referrerpolicy) $this->attributes()['referrerpolicy'] = $referrerpolicy->value;
+        else $this->unsetReferrerpolicy();
+        return $this;
+    }
+
+    /**
+     * An enum indicating which referrer to use when fetching the resource.
+     *
+     * @return static
+     */
+    public function unsetReferrerpolicy(): static
+    {
+        unset($this->attributes()['referrerpolicy']);
+        return $this;
+    }
+
+    /**
+     * The relationship of the linked URL as space-separated link types.
+     *
+     * @return Rel_a[]
+     */
+    public function rel(): array
+    {
+        return $this->attributes()->asEnumArray('rel', Rel_a::class, ' ');
+    }
+
+    /**
+     * The relationship of the linked URL as space-separated link types.
+     *
+     * @param null|Rel_a|array<int|string,Rel_a> $rel
+     * @return static
+     */
+    public function setRel(null|Rel_a|array $rel): static
+    {
+        if ($rel) $this->attributes()->setEnumArray('rel', $rel, Rel_a::class, ' ');
+        else $this->unsetRel();
+        return $this;
+    }
+
+    /**
+     * The relationship of the linked URL as space-separated link types.
+     *
+     * @return static
+     */
+    public function unsetRel(): static
+    {
+        unset($this->attributes()['rel']);
+        return $this;
+    }
+
+    /**
+     * Where to display the linked URL, as the name for a browsing context (a
+     * tab, window, or <iframe>).
+     *
+     * @return null|string|Stringable|BrowsingContext
+     */
+    public function target(): null|string|Stringable|BrowsingContext
+    {
+        return $this->attributes()->asEnum('target', BrowsingContext::class)
+            ?? $this->attributes()->asString('target');
+    }
+
+    /**
+     * Where to display the linked URL, as the name for a browsing context (a
+     * tab, window, or <iframe>).
+     *
+     * @param null|string|Stringable|BrowsingContext $target
+     * @return static
+     */
+    public function setTarget(null|string|Stringable|BrowsingContext $target): static
+    {
+        if (!$target) {
+            $this->unsetTarget();
+        } elseif ($target instanceof BrowsingContext) {
+            $this->attributes()['target'] = $target->value;
+        } else {
+            $this->attributes()['target'] = $target;
+        }
+        return $this;
+    }
+
+    /**
+     * Where to display the linked URL, as the name for a browsing context (a
+     * tab, window, or <iframe>).
+     *
+     * @return static
+     */
+    public function unsetTarget(): static
+    {
+        unset($this->attributes()['target']);
+        return $this;
+    }
+
+    /**
+     * Hints at the linked URL's format with a MIME type. No built-in
+     * functionality.
+     *
+     * @return null|string|Stringable
+     */
+    public function type(): null|string|Stringable
+    {
+        return $this->attributes()->asString('type');
+    }
+
+    /**
+     * Hints at the linked URL's format with a MIME type. No built-in
+     * functionality.
+     *
+     * @param null|string|Stringable $type
+     * @return static
+     */
+    public function setType(null|string|Stringable $type): static
+    {
+        if ($type) $this->attributes()['type'] = $type;
+        else $this->unsetType();
+        return $this;
+    }
+
+    /**
+     * Hints at the linked URL's format with a MIME type. No built-in
+     * functionality.
+     *
+     * @return static
+     */
+    public function unsetType(): static
+    {
+        unset($this->attributes()['type']);
+        return $this;
+    }
+}

src/Html5/InlineTextSemantics/AbbrTag.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace ByJoby\HTML\Html5\InlineTextSemantics;
+
+use ByJoby\HTML\Tags\AbstractContainerTag;
+use Stringable;
+
+/**
+ * The <abbr> HTML element represents an abbreviation or acronym.
+ *
+ * When including an abbreviation or acronym, provide a full expansion of the
+ * term in plain text on first use, along with the <abbr> to mark up the
+ * abbreviation. This informs the user what the abbreviation or acronym means.
+ *
+ * The optional title attribute can provide an expansion for the abbreviation or
+ * acronym when a full expansion is not present. This provides a hint to user
+ * agents on how to announce/display the content while informing all users what
+ * the abbreviation means. If present, title must contain this full description
+ * and nothing else.
+ *
+ * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
+ * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/abbr
+ */
+class AbbrTag extends AbstractContainerTag
+{
+    const TAG = 'abbr';
+
+    /**
+     * The title attribute has a specific semantic meaning when used with the
+     * <abbr> element; it must contain a full human-readable description or
+     * expansion of the abbreviation. This text is often presented by browsers
+     * as a tooltip when the mouse cursor is hovered over the element.
+     *
+     * @return null|string|Stringable
+     */
+    public function title(): null|string|Stringable
+    {
+        return $this->attributes()->asString('title');
+    }
+
+    /**
+     * The title attribute has a specific semantic meaning when used with the
+     * <abbr> element; it must contain a full human-readable description or
+     * expansion of the abbreviation. This text is often presented by browsers
+     * as a tooltip when the mouse cursor is hovered over the element.
+     *
+     * @param null|string|Stringable $title
+     * @return static
+     */
+    public function setTitle(null|string|Stringable $title): static
+    {
+        if ($title) $this->attributes()['title'] = $title;
+        else $this->unsetTitle();
+        return $this;
+    }
+
+    /**
+     * The title attribute has a specific semantic meaning when used with the
+     * <abbr> element; it must contain a full human-readable description or
+     * expansion of the abbreviation. This text is often presented by browsers
+     * as a tooltip when the mouse cursor is hovered over the element.
+     *
+     * @return static
+     */
+    public function unsetTitle(): static
+    {
+        unset($this->attributes()['title']);
+        return $this;
+    }
+}

src/Html5/Tags/BaseTag.php

@@ -2,7 +2,6 @@
 
 namespace ByJoby\HTML\Html5\Tags;
 
-use ByJoby\HTML\ContentCategories\MetadataContent;
 use ByJoby\HTML\Html5\Enums\BrowsingContext;
 use ByJoby\HTML\Tags\AbstractTag;
 use Stringable;
@@ -17,7 +16,7 @@ use Stringable;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
  */
-class BaseTag extends AbstractTag implements MetadataContent
+class BaseTag extends AbstractTag
 {
     const TAG = 'base';
 

src/Html5/Tags/HgroupTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\Tags;
 
-use ByJoby\HTML\ContentCategories\HeadingContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -14,7 +12,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/hgroup
  */
-class HgroupTag extends AbstractContainerTag implements DisplayBlock, HeadingContent
+class HgroupTag extends AbstractContainerTag
 {
     const TAG = 'hgroup';
 }

src/Html5/Tags/LinkTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\Tags;
 
-use ByJoby\HTML\ContentCategories\MetadataContent;
-use ByJoby\HTML\Helpers\StringableEnumArray;
 use ByJoby\HTML\Html5\Enums\As_link;
 use ByJoby\HTML\Html5\Enums\CrossOrigin;
 use ByJoby\HTML\Html5\Enums\ReferrerPolicy_link;
@@ -22,7 +20,7 @@ use Stringable;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/link
  */
-class LinkTag extends AbstractTag implements MetadataContent
+class LinkTag extends AbstractTag
 {
     const TAG = 'link';
 

src/Html5/Tags/MetaTag.php

@@ -2,7 +2,6 @@
 
 namespace ByJoby\HTML\Html5\Tags;
 
-use ByJoby\HTML\ContentCategories\MetadataContent;
 use ByJoby\HTML\Helpers\StringableEnumArray;
 use ByJoby\HTML\Html5\Enums\HttpEquiv_meta;
 use ByJoby\HTML\Html5\Enums\Name_meta;
@@ -18,7 +17,7 @@ use Stringable;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/meta
  */
-class MetaTag extends AbstractTag implements MetadataContent
+class MetaTag extends AbstractTag
 {
     const TAG = 'meta';
 

src/Html5/Tags/NoscriptTag.php

@@ -2,9 +2,6 @@
 
 namespace ByJoby\HTML\Html5\Tags;
 
-use ByJoby\HTML\ContentCategories\MetadataContent;
-use ByJoby\HTML\ContentCategories\PhrasingContent;
-use ByJoby\HTML\DisplayTypes\DisplayContents;
 use ByJoby\HTML\Tags\AbstractContentTag;
 
 /**
@@ -15,7 +12,7 @@ use ByJoby\HTML\Tags\AbstractContentTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/noscript
  */
-class NoscriptTag extends AbstractContentTag implements MetadataContent, PhrasingContent, DisplayContents
+class NoscriptTag extends AbstractContentTag
 {
     const TAG = 'noscript';
 }

src/Html5/Tags/ScriptTag.php

@@ -2,9 +2,6 @@
 
 namespace ByJoby\HTML\Html5\Tags;
 
-use ByJoby\HTML\ContentCategories\MetadataContent;
-use ByJoby\HTML\ContentCategories\PhrasingContent;
-use ByJoby\HTML\DisplayTypes\DisplayNone;
 use ByJoby\HTML\Html5\Enums\BooleanAttribute;
 use ByJoby\HTML\Html5\Enums\CrossOrigin;
 use ByJoby\HTML\Html5\Enums\ReferrerPolicy_script;
@@ -21,7 +18,7 @@ use Stringable;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script
  */
-class ScriptTag extends AbstractContentTag implements MetadataContent, PhrasingContent, DisplayNone
+class ScriptTag extends AbstractContentTag
 {
     const TAG = 'script';
 

src/Html5/Tags/StyleTag.php

@@ -2,7 +2,6 @@
 
 namespace ByJoby\HTML\Html5\Tags;
 
-use ByJoby\HTML\ContentCategories\MetadataContent;
 use ByJoby\HTML\Tags\AbstractContentTag;
 use Stringable;
 
@@ -14,7 +13,7 @@ use Stringable;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/style
  */
-class StyleTag extends AbstractContentTag implements MetadataContent
+class StyleTag extends AbstractContentTag
 {
     const TAG = 'style';
 

src/Html5/TextContentTags/BlockquoteTag.php

@@ -2,9 +2,6 @@
 
 namespace ByJoby\HTML\Html5\TextContentTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\ContentCategories\SectioningRoot;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 use Stringable;
 
@@ -18,7 +15,7 @@ use Stringable;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/blockquote
  */
-class BlockquoteTag extends AbstractContainerTag implements FlowContent, SectioningRoot, DisplayBlock
+class BlockquoteTag extends AbstractContainerTag
 {
     const TAG = 'blockquote';
 

src/Html5/TextContentTags/DivTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\TextContentTags;
 
-use ByJoby\HTML\ContentCategories\SectioningContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -15,7 +13,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/div
  */
-class DivTag extends AbstractContainerTag implements DisplayBlock, SectioningContent
+class DivTag extends AbstractContainerTag
 {
     const TAG = 'div';
 }

src/Html5/TextContentTags/DlTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\TextContentTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -15,7 +13,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/dl
  */
-class DlTag extends AbstractContainerTag implements FlowContent, DisplayBlock
+class DlTag extends AbstractContainerTag
 {
     const TAG = 'dl';
 }

src/Html5/TextContentTags/FigcaptionTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\TextContentTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -13,7 +11,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/figcaption
  */
-class FigcaptionTag extends AbstractContainerTag implements FlowContent, DisplayBlock
+class FigcaptionTag extends AbstractContainerTag
 {
     const TAG = 'figcaption';
 }

src/Html5/TextContentTags/FigureTag.php

@@ -3,8 +3,6 @@
 namespace ByJoby\HTML\Html5\TextContentTags;
 
 use ByJoby\HTML\Containers\ContainerGroup;
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\NodeInterface;
 use ByJoby\HTML\Tags\AbstractGroupedTag;
 use ByJoby\HTML\Tags\TagInterface;
@@ -17,7 +15,7 @@ use ByJoby\HTML\Tags\TagInterface;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/figure
  */
-class FigureTag extends AbstractGroupedTag implements FlowContent, DisplayBlock
+class FigureTag extends AbstractGroupedTag
 {
     const TAG = 'figure';
 

src/Html5/TextContentTags/HrTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\TextContentTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractTag;
 
 /**
@@ -14,7 +12,7 @@ use ByJoby\HTML\Tags\AbstractTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/hr
  */
-class HrTag extends AbstractTag implements FlowContent, DisplayBlock
+class HrTag extends AbstractTag
 {
     const TAG = 'hr';
 }

src/Html5/TextContentTags/LiTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\TextContentTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Html5\Enums\Type_list;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
@@ -17,7 +15,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/li
  */
-class LiTag extends AbstractContainerTag implements FlowContent, DisplayBlock
+class LiTag extends AbstractContainerTag
 {
     const TAG = 'li';
 

src/Html5/TextContentTags/MenuTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\TextContentTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -15,7 +13,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/menu
  */
-class MenuTag extends AbstractContainerTag implements FlowContent, DisplayBlock
+class MenuTag extends AbstractContainerTag
 {
     const TAG = 'menu';
 }

src/Html5/TextContentTags/OlTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\TextContentTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Html5\Enums\BooleanAttribute;
 use ByJoby\HTML\Html5\Enums\Type_list;
 use ByJoby\HTML\Tags\AbstractContainerTag;
@@ -15,7 +13,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/ol
  */
-class OlTag extends AbstractContainerTag implements FlowContent, DisplayBlock
+class OlTag extends AbstractContainerTag
 {
     const TAG = 'ol';
 

src/Html5/TextContentTags/PTag.php

@@ -2,8 +2,6 @@
 
 namespace ByJoby\HTML\Html5\TextContentTags;
 
-use ByJoby\HTML\ContentCategories\SectioningContent;
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -15,7 +13,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/p
  */
-class PTag extends AbstractContainerTag implements DisplayBlock, SectioningContent
+class PTag extends AbstractContainerTag
 {
     const TAG = 'p';
 }

src/Html5/TextContentTags/PreTag.php

@@ -2,7 +2,6 @@
 
 namespace ByJoby\HTML\Html5\TextContentTags;
 
-use ByJoby\HTML\DisplayTypes\DisplayBlock;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -14,7 +13,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/pre
  */
-class PreTag extends AbstractContainerTag implements DisplayBlock
+class PreTag extends AbstractContainerTag
 {
     const TAG = 'pre';
 }

src/Html5/TextContentTags/SpanTag.php

@@ -2,9 +2,6 @@
 
 namespace ByJoby\HTML\Html5\TextContentTags;
 
-use ByJoby\HTML\ContentCategories\FlowContent;
-use ByJoby\HTML\ContentCategories\PhrasingContent;
-use ByJoby\HTML\DisplayTypes\DisplayInline;
 use ByJoby\HTML\Tags\AbstractContainerTag;
 
 /**
@@ -19,7 +16,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/span
  */
-class SpanTag extends AbstractContainerTag implements DisplayInline, FlowContent, PhrasingContent
+class SpanTag extends AbstractContainerTag
 {
     const TAG = 'span';
 }

src/Html5/TextContentTags/UlTag.php

@@ -12,7 +12,7 @@ use ByJoby\HTML\Tags\AbstractContainerTag;
  * Tag description by Mozilla Contributors licensed under CC-BY-SA 2.5
  * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/ul
  */
-class UlTag extends AbstractContainerTag implements DisplayBlock
+class UlTag extends AbstractContainerTag
 {
     const TAG = 'ul';
-}
+}