[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"site-config":3,"topic:html-accessibility-aria-screen-readers":6,"blog-categories":89,"course-tree":114},{"data":4},{"google_site_verification":5,"ga4_measurement_id":5,"site_name":5,"default_og_image":5,"twitter_handle":5},null,{"data":7},{"id":8,"title":9,"slug":10,"content":11,"course":12,"subcategory":15,"author":18,"reading_time_minutes":24,"cornerstone":25,"schema_type":26,"faq_json":5,"video_url":5,"canonical_url":27,"meta_title":28,"meta_description":29,"og_image":5,"toc_json":30,"code_examples":58,"quiz":5,"exercises":71,"published_at":5,"updated_at":80,"prev":81,"next":85},67,"HTML Accessibility (ARIA, Screen Readers)","html-accessibility-aria-screen-readers","\u003Ch2 id=\"html-accessibility-aria-screen-readers\">HTML Accessibility (ARIA, Screen Readers)\u003C\u002Fh2>\u003Cp>Web accessibility means building pages that everyone can use, including people who rely on screen readers, keyboard-only navigation, switch devices, or other assistive technology. It isn't an optional extra — in many countries it's a legal requirement (like the ADA in the US or the EN 301 549 standard in the EU), and it also improves usability for every visitor, not just those with disabilities.\u003C\u002Fp>\u003Ch3 id=\"start-with-semantic-html\">Start with Semantic HTML\u003C\u002Fh3>\u003Cp>The single biggest accessibility win is simply using the correct native HTML element for the job — a real \u003Ccode><button>\u003C\u002Fcode> instead of a styled \u003Ccode><div>\u003C\u002Fcode>, a real \u003Ccode><nav>\u003C\u002Fcode> instead of a generic wrapper. Native elements already come with built-in keyboard support, focus handling, and screen-reader announcements for free.\u003C\u002Fp>\u003Ch3 id=\"what-is-aria\">What is ARIA?\u003C\u002Fh3>\u003Cp>ARIA (Accessible Rich Internet Applications) is a set of extra HTML attributes that describe roles, states, and properties to assistive technology, used to fill gaps when semantic HTML alone isn't enough — for example, in complex custom widgets like tab panels, modals, or autocomplete menus. The golden rule of ARIA is: \"No ARIA is better than bad ARIA\" — always prefer a native element first.\u003C\u002Fp>\u003Ch3 id=\"common-aria-attributes\">Common ARIA Attributes\u003C\u002Fh3>\u003Cul>\n\u003Cli>\u003Cstrong>role\u003C\u002Fstrong> — defines what a custom element behaves as (e.g. \u003Ccode>role=\"button\"\u003C\u002Fcode>, \u003Ccode>role=\"dialog\"\u003C\u002Fcode>).\u003C\u002Fli>\n\u003Cli>\u003Cstrong>aria-label\u003C\u002Fstrong> — provides an accessible name when there's no visible text label.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>aria-hidden=\"true\"\u003C\u002Fstrong> — hides purely decorative content from screen readers.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>aria-expanded\u003C\u002Fstrong> — tells screen readers whether a collapsible section is open or closed.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>aria-live\u003C\u002Fstrong> — announces dynamic content updates (like a form error or a live chat message) without the user needing to navigate to them.\u003C\u002Fli>\n\u003C\u002Ful>\u003Ch3 id=\"keyboard-navigation\">Keyboard Navigation\u003C\u002Fh3>\u003Cp>Every interactive element must be reachable and operable using only the Tab, Shift+Tab, Enter, and Space keys, since many users cannot use a mouse at all. Custom interactive components built with \u003Ccode><div>\u003C\u002Fcode> elements need \u003Ccode>tabindex\u003C\u002Fcode> and manual keyboard event handling to behave correctly.\u003C\u002Fp>\u003Ch3 id=\"images-forms-and-color-contrast\">Images, Forms and Color Contrast\u003C\u002Fh3>\u003Cp>Always give meaningful images an \u003Ccode>alt\u003C\u002Fcode> attribute describing their content, and mark purely decorative images with \u003Ccode>alt=\"\"\u003C\u002Fcode>. Every form input needs an associated \u003Ccode><label>\u003C\u002Fcode>. Text and background colors should meet WCAG's minimum contrast ratio so low-vision users can read content comfortably.\u003C\u002Fp>\u003Ch3 id=\"testing-accessibility\">Testing Accessibility\u003C\u002Fh3>\u003Cp>Common techniques include navigating a page using only the keyboard, testing with a real screen reader (VoiceOver on Mac, NVDA on Windows), and running automated audit tools like Lighthouse or axe DevTools to catch common issues quickly.\u003C\u002Fp>\u003Cdiv class=\"try-it-yourself language-html\">\u003Cpre>\u003Ccode><!-- A custom accordion button using ARIA to communicate its expanded state -->\n<button aria-expanded='false' aria-controls='panel1' id='accordionBtn'>\n  What is included in the plan?\n<\u002Fbutton>\n<div id='panel1' role='region' hidden>\n  <p>The plan includes hosting, support, and monthly backups.<\u002Fp>\n<\u002Fdiv>\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>\u003Cdiv class=\"try-it-yourself language-javascript\">\u003Cpre>\u003Ccode>\u002F\u002F Toggling the accordion and keeping ARIA state in sync\nconst btn = document.getElementById('accordionBtn');\nconst panel = document.getElementById('panel1');\n\nbtn.addEventListener('click', () => {\n  const isExpanded = btn.getAttribute('aria-expanded') === 'true';\n  btn.setAttribute('aria-expanded', String(!isExpanded));\n  panel.hidden = isExpanded;\n});\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>\u003Cdiv class=\"try-it-yourself language-html\">\u003Cpre>\u003Ccode><!-- Accessible form field example -->\n<label for='email'>Email address<\u002Flabel>\n<input type='email' id='email' name='email' required aria-describedby='emailHelp'>\n<small id='emailHelp'>We'll never share your email with anyone else.<\u002Fsmall>\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>",{"name":13,"slug":14},"HTML","html-tutorial",{"name":16,"slug":17},"Accessibility & Best Practices (High-Demand  Skill) �","accessibility-best-practices-high-demand-skill",{"slug":19,"display_name":20,"job_title":5,"short_bio":5,"expertise_tags":21,"headshot":5,"long_bio":5,"credentials":5,"twitter_url":5,"linkedin_url":5,"github_url":5,"personal_website_url":5,"other_sameas_urls":5,"topics":22,"posts":23},"badar-khalil","Badar Khalil",[],[],[],2,false,"Article","https:\u002F\u002Fwpfsharp.com\u002Ftopics\u002Fhtml-accessibility-aria-screen-readers","HTML Accessibility: ARIA & Screen Reader Guide","Learn HTML accessibility fundamentals — semantic elements, ARIA roles and attributes, keyboard navigation, and screen reader support with code examples.",[31],{"id":10,"text":9,"level":24,"children":32},[33,38,42,46,50,54],{"id":34,"text":35,"level":36,"children":37},"start-with-semantic-html","Start with Semantic HTML",3,[],{"id":39,"text":40,"level":36,"children":41},"what-is-aria","What is ARIA?",[],{"id":43,"text":44,"level":36,"children":45},"common-aria-attributes","Common ARIA Attributes",[],{"id":47,"text":48,"level":36,"children":49},"keyboard-navigation","Keyboard Navigation",[],{"id":51,"text":52,"level":36,"children":53},"images-forms-and-color-contrast","Images, Forms and Color Contrast",[],{"id":55,"text":56,"level":36,"children":57},"testing-accessibility","Testing Accessibility",[],[59,64,68],{"id":60,"language":61,"code":62,"is_editable":63},146,"html","\u003C!-- A custom accordion button using ARIA to communicate its expanded state -->\n\u003Cbutton aria-expanded='false' aria-controls='panel1' id='accordionBtn'>\n  What is included in the plan?\n\u003C\u002Fbutton>\n\u003Cdiv id='panel1' role='region' hidden>\n  \u003Cp>The plan includes hosting, support, and monthly backups.\u003C\u002Fp>\n\u003C\u002Fdiv>",true,{"id":65,"language":66,"code":67,"is_editable":63},147,"javascript","\u002F\u002F Toggling the accordion and keeping ARIA state in sync\nconst btn = document.getElementById('accordionBtn');\nconst panel = document.getElementById('panel1');\n\nbtn.addEventListener('click', () => {\n  const isExpanded = btn.getAttribute('aria-expanded') === 'true';\n  btn.setAttribute('aria-expanded', String(!isExpanded));\n  panel.hidden = isExpanded;\n});",{"id":69,"language":61,"code":70,"is_editable":63},148,"\u003C!-- Accessible form field example -->\n\u003Clabel for='email'>Email address\u003C\u002Flabel>\n\u003Cinput type='email' id='email' name='email' required aria-describedby='emailHelp'>\n\u003Csmall id='emailHelp'>We'll never share your email with anyone else.\u003C\u002Fsmall>",[72],{"id":73,"title":74,"slug":75,"prompt":76,"starter_code":77,"expected_output":78,"language":61,"order_index":79},65,"Fix the Inaccessible Button","fix-the-inaccessible-button","The code below uses a \u003Cdiv> styled to look like a button, but it can't be focused or activated with a keyboard, and has no accessible name. 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