Elements of Style - HTML Manual of Style - page 170

<ul>
<li><a href="#">Apples</a>
<ul>
<li><a href="#"> Red Delicious </a></li>
<li><a href="#"> Gala </a></li>
<li><a href="#"> Macintosh </a></li>
</ul>
</li>
<li><a href="#">Oranges</a>
<ul>
<li><a href="#"> Navel </a></li>
<li><a href="#"> Valencia </a></li>
<li><a href="#"> Blood </a></li>
</ul>
</li>
</ul>
</body>
</html>
Figure 3.20 shows how this appears in a typical browser. he window on the
right shows the drop menu for oranges activated by the mouse pointer's hover-
ing on the link.
Figure 3.20: Creating a simple drop menu
Other CSS Properties
We have not covered all of CSS. A number of important properties control the
fundamental display characteristics of an HTML element. his section covers
the properties display , visibility , overflow , float , and clear .