4 p { width:
13em; border:
1px solid black; }
5 p span { white-space: nowrap; }
10 <!-- We should be able to break even when the only break opportunity is within a span
11 that overflows the line width (the break opportunity after the whitespace is treated
12 as a break before the first character of the second span) -->
13 <p><span>mmmmmmmmmm
</span>
14 <span>mmmmm
<a>mmmmm
</a></span></p>
15 <!-- A span that overflows the line width should be allowed to fit, it might have a break
16 opportunity inside it (the break opportunity after the whitespace is treated
17 as a break before the first character of the second span) -->
18 <p>m
<span>mmmmmmmmmm
</span>
19 <span>m
<a>mmmmmmmmm
</a></span></p>