1 <title>Ambiguous line width
</title>
3 <div style=
"background: yellow; width: 10em; height: 10em; line-height: 1; font-family: sans-serif;">
4 <div style=
"float: left; height: 2em; width: 1em; background: blue"></div>
5 <div style=
"float: left; clear: left; height: 2em; width: 5em; background: aqua"></div>
7 <!-- small <span style="font-size: 3em">big</span> -->
9 <span style=
"display:inline-block; height: 1em; width: 4em; background: maroon; vertical-align: bottom"></span>
10 <span style=
"display:inline-block; height: 3em; width: 4em; background: maroon; vertical-align: bottom"></span>