<!doctype html>
<meta charset=utf-8>
<title>CSS-contain test: style containment dynamic containment set unset invalidation</title>
<link rel="author" title="Daniil Sakhapov" href="[email protected]">
<link rel="match" href="reference/quote-scoping-invalidation-002-ref.html">
<link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-style">
<style>
#root {
quotes: "A" "Z" "1" "9" "(" ")" "+" "-";
}
#root::before, #root span::before {
content: open-quote;
}
#root::after {
content: close-quote;
}
.contain-style {
contain: style;
}
</style>
<p>Test passes if the text below is "A1(+-" (not including the quotation marks).<p>
<div id="root">
<div id="scope">
<span id="span1"></span>
<span id="span2"></span>
</div>
<span></span>
</div>
<script>
document.body.offsetTop;
scope.style.contain = "style";
document.body.offsetTop;
scope.style.contain = "";
</script>