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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Reference</title>
<style>
.clamp {
width: 63.1ch;
border: 1px solid black;
font-family: monospace;
}
</style>
<div class="clamp">
This time, Mark, who had always been the center of attention in
<!-- End of first line -->
any social gathering, walked into the room…
</div>