text-decoration-thickness-001.svg
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Original test: text-decoration-thickness-001.xht.

CSS Section: http://www.w3.org/TR/CSS21/text.html#lining-striking-props.

    <style type="text/css">
     text { text-decoration: underline; }
     #span1 { font-size: 20pt; }
     #span2 { font-size: 10pt; }
     #span3 { font-size:  5pt; }
    </style>