cdn-experiments/ccp/js/codemirror-5.65.2/demo/placeholder.html

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<!doctype html>
<title>CodeMirror: Placeholder demo</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="../doc/docs.css">
<link rel="stylesheet" href="../lib/codemirror.css">
<script src="../lib/codemirror.js"></script>
<script src="../addon/display/placeholder.js"></script>
<style>
.CodeMirror { border: 1px solid silver; }
.CodeMirror-empty { outline: 1px solid #c22; }
.CodeMirror-empty.CodeMirror-focused { outline: none; }
.CodeMirror pre.CodeMirror-placeholder { color: #999; }
</style>
<div id=nav>
<a href="https://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../doc/logo.png"></a>
<ul>
<li><a href="../index.html">Home</a>
<li><a href="../doc/manual.html">Manual</a>
<li><a href="https://github.com/codemirror/codemirror">Code</a>
</ul>
<ul>
<li><a class=active href="#">Placeholder</a>
</ul>
</div>
<article>
<h2>Placeholder demo</h2>
<form><textarea id="code" name="code" placeholder="Code goes here..."></textarea></form>
<p>The <a href="../doc/manual.html#addon_placeholder">placeholder</a>
plug-in adds an option <code>placeholder</code> that can be set to
make text appear in the editor when it is empty and not focused.
If the source textarea has a <code>placeholder</code> attribute,
it will automatically be inherited.</p>
<script>
var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
lineNumbers: true
});
</script>
</article>