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<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Containment Test: 'contain: style' for counters (span children of <body>)</title>
<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
<link rel="help" href="https://www.w3.org/TR/css-contain-1/#containment-style">
<link rel="match" href="reference/contain-style-counters-003-ref.html">
<style>
body
{
counter-reset: counter-of-span 17;
}
/*
This creates a new counter identified as "counter-of-span"
and initially sets such counter to 17 (an entirely
arbitrary number)
*/
body
{
contain: style;
}
/*
This will reset the counter to 0.
*/
body span
{
counter-increment: counter-of-span 4;
}
/*
This increments the counter identified as "counter-of-span"
of the step value of 4 (an entirely arbitrary number) each
and every time there is a <span> descendant within the subtree
of body
*/
div
{
font-size: 3em;
}
div::after
{
content: counter(counter-of-span);
}
/*
Now, the generated content after the span is set to the
current value of the counter identified as "counter-of-span"
*/
</style>
<body>
<span></span> <span></span> <span></span> <span></span> <span></span>
<!-- 5 span above -->
<p>Test passes if there is the number 20.
<div></div>
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