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<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Reftest Reference</title>
<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
<style>
textarea
{
background-color: yellow;
color: green;
font-family: monospace;
font-size: 48px;
height: 112px;
line-height: 56px;
padding: 0px;
resize: none;
width: 8ch;
outline: none;
}
</style>
<script>
function startReference()
{
/*
Some browsers, like Chromium 80+ or Safari 14+, will
transfer focus to a selected element like a textarea
and therefore style the border of such element according
to an user agent stylesheet rule, such as:
:focus {outline: -webkit-focus-ring-color auto 1px;} .
So, we deliberately trigger such focus with the focus()
method in the reference file.
*/
document.getElementById("ref").focus();
/*
When a textarea element is focused in Firefox
82+, then the caret becomes visible and blinking and
it is painted with the ::selected's color which is
the green color in this case. We therefore counter,
neutralize this by resetting the caret's color to the
background color.
*/
document.getElementById("ref").style.caretColor = "yellow";
}
</script>
<body onload="startReference();">
<p>Test passes if each glyph of both "Selected" is green with a yellow background and if there is <strong>no red</strong>.
<div><textarea id="ref" rows="2" cols="8">Selected Selected </textarea></div>