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<!doctype html>
<title>CSS test reference</title>
<style>
#ref {
width: 100px;
height: 100px;
background: green;
}
</style>
<div id="ref"></div>
<!doctype html>
<title>CSS test reference</title>
<style>
#ref {
width: 100px;
height: 100px;
background: green;
}
</style>
<div id="ref"></div>