accessibility-checker-engine
Version:
An automated accessibility checking engine for use by other tools
99 lines (85 loc) • 4.27 kB
HTML
<html lang="en-US">
<head>
<title>meta_viewport_zoomable - Accessibility Checker Help</title>
<script>
RULE_MESSAGES = {"en-US":{"group":"The 'meta[name=viewport]' should not prevent the browser zooming the content","pass":"The 'meta[name=viewport]' does not prevent the browser zooming the content","potential_zoomable":"Confirm the 'meta[name=viewport]' with \"{0}\" can be zoomed by user"}};
RULE_ID = "meta_viewport_zoomable"
</script>
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<!-- Title and messages generated at build time -->
<link rel="icon" href="https://ibm.com/able/favicon-32x32.png" type="image/png">
<link rel="icon" href="https://ibm.com/able/favicon.svg" type="image/svg+xml">
<link rel="stylesheet" href="../common/help.css" />
<script type="module">
import "https://1.www.s81c.com/common/carbon/web-components/version/v1.35.0/code-snippet.min.js";
import "https://1.www.s81c.com/common/carbon/web-components/version/v1.35.0/list.min.js";
</script>
<script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
<script src="../common/help.js"></script>
</head>
<body>
<div class="bx--grid toolHelp">
<div class="bx--row">
<div class="bx--col-sm-4 bx--col-md-8 bx--col-lg-16 toolHead">
<!-- Group message injected here -->
<h3 id="ruleMessage"></h3>
<!-- Severity level injected here -->
<div id="locLevel"></div>
<!-- Rule specific message injected here -->
<p id="groupLabel"></p>
</div>
</div>
<div class="bx--row">
<div class="bx--col-sm-4 bx--col-md-5 bx--col-lg-8 toolMain">
<!-- Start main panel -->
<mark-down><script type="text/plain">
### Why is this important?
Users who need magnification with older mobile browsers may not be able to zoom the content.
Desktop browsers ignore the viewport meta element,
and most modern mobile browsers either ignore it by default or have an accessibility option that will allow zooming.
Only users with older mobile browsers can experience issues tested by this rule.
This rule is designed specifically for testing [1.4.4 Resize text](https://www.ibm.com/able/requirements/requirements/#1_4_4),
which requires that text can be resized up to 200%.
<!-- This is where the code snippet is injected -->
<div id="locSnippet"></div>
### What to do
* Confirm the page provides zoom controls for the content up to 200%
* **Or**, remove the `user-scalable` and/or `maximum-scale` attribute
* **Or**, set the `user-scalable` attribute to "yes" and/or the `maximum-scale` to at least "2"
</script></mark-down>
<!-- End main panel -->
<!-- This is where the rule id is injected -->
<div id="ruleInfo"></div>
</div>
<div class="bx--col-sm-4 bx--col-md-3 bx--col-lg-4 toolSide">
<!-- Start side panel -->
<mark-down><script type="text/plain">
### About this requirement
* [IBM 1.4.4 Resize text](https://www.ibm.com/able/requirements/requirements/#1_4_4)
* [ACT rule: meta viewport allows for zoom](https://act-rules.github.io/rules/b4f0c3)
### Who does this affect?
* People using a screen reader, including blind, low vision, and neurodivergent people
* People with low vision using screen magnification
* People with reading disabilities
* Many older adults
</script></mark-down>
<!-- End side panel -->
</div>
</div>
</div>
</body>
</html>