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<!doctype html>
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<title>CodeMirror</title>
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<meta charset="utf-8"/>
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<link rel=stylesheet href="lib/codemirror.css">
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<link rel=stylesheet href="doc/docs.css">
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<script src="lib/codemirror.js"></script>
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<script src="mode/xml/xml.js"></script>
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<script src="mode/javascript/javascript.js"></script>
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<script src="mode/css/css.js"></script>
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<script src="mode/htmlmixed/htmlmixed.js"></script>
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<script src="addon/edit/matchbrackets.js"></script>
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<script src="doc/activebookmark.js"></script>
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<style>
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.CodeMirror { height: auto; border: 1px solid #ddd; }
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.CodeMirror-scroll { max-height: 200px; }
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.CodeMirror pre { padding-left: 7px; line-height: 1.25; }
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</style>
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<div id=nav>
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<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="doc/logo.png"></a>
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<ul>
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<li><a class=active data-default="true" href="#description">Home</a>
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<li><a href="doc/manual.html">Manual</a>
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<li><a href="https://github.com/codemirror/codemirror">Code</a>
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</ul>
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<ul>
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<li><a href="#features">Features</a>
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<li><a href="#community">Community</a>
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<li><a href="#browsersupport">Browser support</a>
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</ul>
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</div>
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<article>
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<section id=description class=first>
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<p><strong>CodeMirror</strong> is a versatile text editor
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implemented in JavaScript for the browser. It is specialized for
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editing code, and comes with a number of <a href="mode/index.html">language modes</a> and <a href="doc/manual.html#addons">addons</a>
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that implement more advanced editing functionality.</p>
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<p>A rich <a href="doc/manual.html#api">programming API</a> and a
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CSS <a href="doc/manual.html#styling">theming</a> system are
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available for customizing CodeMirror to fit your application, and
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extending it with new functionality.</p>
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</section>
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<section id=demo>
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<h2>This is CodeMirror</h2>
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<form style="position: relative; margin-top: .5em;"><textarea id=demotext>
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<!-- Create a simple CodeMirror instance -->
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<link rel="stylesheet" href="lib/codemirror.css">
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<script src="lib/codemirror.js"></script>
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<script>
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var editor = CodeMirror.fromTextArea(myTextarea, {
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lineNumbers: true
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});
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</script></textarea>
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<select id="demolist" onchange="document.location = this.options[this.selectedIndex].value;">
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<option value="#">Other demos...</option>
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<option value="demo/complete.html">Autocompletion</option>
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<option value="demo/folding.html">Code folding</option>
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<option value="demo/theme.html">Themes</option>
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<option value="mode/htmlmixed/index.html">Mixed language modes</option>
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<option value="demo/bidi.html">Bi-directional text</option>
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<option value="demo/variableheight.html">Variable font sizes</option>
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<option value="demo/search.html">Search interface</option>
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<option value="demo/vim.html">Vim bindings</option>
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<option value="demo/emacs.html">Emacs bindings</option>
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<option value="demo/sublime.html">Sublime Text bindings</option>
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<option value="demo/tern.html">Tern integration</option>
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<option value="demo/merge.html">Merge/diff interface</option>
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<option value="demo/fullscreen.html">Full-screen editor</option>
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<option value="demo/simplescrollbars.html">Custom scrollbars</option>
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</select></form>
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<script>
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var editor = CodeMirror.fromTextArea(document.getElementById("demotext"), {
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lineNumbers: true,
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mode: "text/html",
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matchBrackets: true
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});
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</script>
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<div class=actions>
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<div class=actionspicture>
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<img src="doc/yinyang.png" class=yinyang>
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<div class="actionlink download">
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<a href="http://codemirror.net/codemirror.zip">DOWNLOAD</a>
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</div>
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<div class="actionlink fund">
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<a href="https://marijnhaverbeke.nl/fund/">FUND</a>
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</div>
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</div>
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<div class=actionsleft>
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Get the current version: <a href="http://codemirror.net/codemirror.zip">5.25.0</a>.<br>
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You can see the <a href="https://github.com/codemirror/codemirror" title="Github repository">code</a>,<br>
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read the <a href="doc/releases.html">release notes</a>,<br>
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or study the <a href="doc/manual.html">user manual</a>.
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</div>
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<div class=actionsright>
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Software needs maintenance,<br>
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maintainers need to subsist.<br>
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Current funding status = <img src="https://marijnhaverbeke.nl/fund/status_s.png" title="Current maintainer happiness" style="vertical-align: middle; height: 16px; width: 16px"><br>
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You can help <a href="https://marijnhaverbeke.nl/fund/" title="Set up a monthly contribution">per month</a> or
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<a title="Donate with PayPal" href="javascript:document.getElementById('paypal').submit();">once</a>.
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<form action="https://www.paypal.com/cgi-bin/webscr" method="post" id="paypal">
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<input type="hidden" name="cmd" value="_s-xclick"/>
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<input type="hidden" name="hosted_button_id" value="3FVHS5FGUY7CC"/>
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</form>
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</div>
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</div>
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</section>
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<section id=features>
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<h2>Features</h2>
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<ul>
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<li>Support for <a href="mode/index.html">over 100 languages</a> out of the box
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<li>A powerful, <a href="mode/htmlmixed/index.html">composable</a> language mode <a href="doc/manual.html#modeapi">system</a>
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<li><a href="doc/manual.html#addon_show-hint">Autocompletion</a> (<a href="demo/xmlcomplete.html">XML</a>)
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<li><a href="doc/manual.html#addon_foldcode">Code folding</a>
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<li><a href="doc/manual.html#option_extraKeys">Configurable</a> keybindings
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<li><a href="demo/vim.html">Vim</a>, <a href="demo/emacs.html">Emacs</a>, and <a href="demo/sublime.html">Sublime Text</a> bindings
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<li><a href="doc/manual.html#addon_search">Search and replace</a> interface
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<li><a href="doc/manual.html#addon_matchbrackets">Bracket</a> and <a href="doc/manual.html#addon_matchtags">tag</a> matching
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<li>Support for <a href="demo/buffers.html">split views</a>
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<li><a href="doc/manual.html#addon_lint">Linter integration</a>
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<li><a href="demo/variableheight.html">Mixing font sizes and styles</a>
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<li><a href="demo/theme.html">Various themes</a>
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<li>Able to <a href="demo/resize.html">resize to fit content</a>
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<li><a href="doc/manual.html#mark_replacedWith">Inline</a> and <a href="doc/manual.html#addLineWidget">block</a> widgets
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<li>Programmable <a href="demo/marker.html">gutters</a>
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<li>Making ranges of text <a href="doc/manual.html#markText">styled, read-only, or atomic</a>
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<li><a href="demo/bidi.html">Bi-directional text</a> support
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<li>Many other <a href="doc/manual.html#api">methods</a> and <a href="doc/manual.html#addons">addons</a>...
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</ul>
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</section>
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<section id=community>
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<h2>Community</h2>
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<p>CodeMirror is an open-source project shared under
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an <a href="LICENSE">MIT license</a>. It is the editor used in the
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dev tools for
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both <a href="https://hacks.mozilla.org/2013/11/firefox-developer-tools-episode-27-edit-as-html-codemirror-more/">Firefox</a>
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and <a href="https://developers.google.com/chrome-developer-tools/">Chrome</a>, <a href="http://www.lighttable.com/">Light
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Table</a>, <a href="http://brackets.io/">Adobe
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Brackets</a>, <a href="http://blog.bitbucket.org/2013/05/14/edit-your-code-in-the-cloud-with-bitbucket/">Bitbucket</a>,
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and <a href="doc/realworld.html">many other projects</a>.</p>
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<p>Development and bug tracking happens
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on <a href="https://github.com/codemirror/CodeMirror/">github</a>
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(<a href="http://marijnhaverbeke.nl/git/codemirror">alternate git
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repository</a>).
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Please <a href="http://codemirror.net/doc/reporting.html">read these
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pointers</a> before submitting a bug. Use pull requests to submit
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patches. All contributions must be released under the same MIT
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license that CodeMirror uses.</p>
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<p>Discussion around the project is done on
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a <a href="https://discuss.codemirror.net">discussion forum</a>.
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Announcements related to the project, such as new versions, are
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posted in the
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forum's <a href="https://discuss.codemirror.net/c/announce">"announce"</a>
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category. If needed, you can
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contact <a href="mailto:marijnh@gmail.com">the maintainer</a>
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directly. We aim to be an inclusive, welcoming community. To make
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that explicit, we have
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a <a href="http://contributor-covenant.org/version/1/1/0/">code of
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conduct</a> that applies to communication around the project.</p>
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<p>A list of CodeMirror-related software that is not part of the
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main distribution is maintained
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on <a href="https://github.com/codemirror/CodeMirror/wiki/CodeMirror-addons">our
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wiki</a>. Feel free to add your project.</p>
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</section>
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<section id=browsersupport>
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<h2>Browser support</h2>
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<p>The <em>desktop</em> versions of the following browsers,
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in <em>standards mode</em> (HTML5 <code><!doctype html></code>
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recommended) are supported:</p>
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<table style="margin-bottom: 1em">
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<tr><th>Firefox</th><td>version 4 and up</td></tr>
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<tr><th>Chrome</th><td>any version</td></tr>
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<tr><th>Safari</th><td>version 5.2 and up</td></tr>
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<tr><th style="padding-right: 1em;">Internet Explorer</th><td>version 8 and up</td></tr>
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<tr><th>Opera</th><td>version 9 and up</td></tr>
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</table>
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<p>Support for modern mobile browsers is experimental. Recent
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versions of the iOS browser and Chrome on Android should work
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pretty well.</p>
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</section>
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</article>
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