3 div { font-size:
12px; line-height:
1.0; width:
450px }
4 input { font-size:
12px; }
7 In a 450px container, the minimum font size at 15em per line is 30px.
8 This means we map 0px-45px into 30px-45px, so 12px gets mapped to 34px.
10 <div><input type=
"text" value=
"Hello world"></div>
