Credit: https://www.w3.org/WAI/WCAG21/Techniques/#html
- H2: Combining adjacent image and text links for the same resource
 - H24: Providing text alternatives for the area elements of image maps
 - H25: Providing a title using the title element
 - H28: Providing definitions for abbreviations by using the abbr element
 - H30: Providing link text that describes the purpose of a link for anchor elements
 - H32: Providing submit buttons
 - H33: Supplementing link text with the title attribute
 - H34: Using a Unicode right-to-left mark (RLM) or left-to-right mark (LRM) to mix text direction inline
 - H36: Using alt attributes on images used as submit buttons
 - H37: Using alt attributes on img elements
 - H39: Using caption elements to associate data table captions with data tables
 - H40: Using description lists
 - H42: Using h1-h6 to identify headings
 - H43: Using id and headers attributes to associate data cells with header cells in data tables
 - H44: Using label elements to associate text labels with form controls
 - H48: Using ol, ul and dl for lists or groups of links
 - H49: Using semantic markup to mark emphasized or special text
 - H51: Using table markup to present tabular information
 - H53: Using the body of the object element
 - H54: Using the dfn element to identify the defining instance of a word
 - H56: Using the dir attribute on an inline element to resolve problems with nested directional runs
 - H57: Using the language attribute on the HTML element
 - H58: Using language attributes to identify changes in the human language
 - H62: Using the ruby element
 - H63: Using the scope attribute to associate header cells with data cells in data tables
 - H64: Using the title attribute of the iframe element
 - H65: Using the title attribute to identify form controls when the label element cannot be used
 - H67: Using null alt text and no title attribute on img elements for images that assistive technology should ignore
 - H69: Providing heading elements at the beginning of each section of content
 - H71: Providing a description for groups of form controls using fieldset and legend elements
 - H74: Ensuring that opening and closing tags are used according to specification
 - H75: Ensuring that web pages are well-formed
 - H76: Using meta refresh to create an instant client-side redirect
 - H77: Identifying the purpose of a link using link text combined with its enclosing list item
 - H78: Identifying the purpose of a link using link text combined with its enclosing paragraph
 - H79: Identifying the purpose of a link in a data table using the link text combined with its enclosing table cell and associated table header cells
 - H80: Identifying the purpose of a link using link text combined with the preceding heading element
 - H81: Identifying the purpose of a link in a nested list using link text combined with the parent list item under which the list is nested
 - H83: Using the target attribute to open a new window on user request and indicating this in link text
 - H84: Using a button with a select element to perform an action
 - H85: Using optgroup to group option elements inside a select
 - H86: Providing text alternatives for emojis, emoticons, ASCII art, and leetspeak
 - H88: Using HTML according to spec
 - H89: Using the title attribute to provide context-sensitive help
 - H90: Indicating required form controls using label or legend
 - H91: Using HTML form controls and links
 - H93: Ensuring that id attributes are unique on a web page
 - H94: Ensuring that elements do not contain duplicate attributes
 - H95: Using the track element to provide captions
 - H96: Using the track element to provide audio descriptions
 - H97: Grouping related links using the nav element
 - H98: Using HTML 5.2 autocomplete attributes
 - H99: Provide a page-selection mechanism
 - H101: Using semantic HTML elements to identify regions of a page
 - H102: Creating modal dialogs with the HTML dialog element