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Test Info:

div {
width: 450px;
font-size: 12px;
a {
font-weight: bold;
line-height: 1.1em;
color: blue;
a#first {
font-size: 12px;
font-style: italic;
a#second {
font-size: 30px;
In a 450 px container, the minimum font size at 15em per line is 30px. This
means we map 0px-45px into 30px-45px, so 12px gets mapped to 34px and 30px
gets mapped to 40px.
<a id="first" href="">Hello</a><a id="second" href="">Worldz</a>