我是CSS的新手.我想在悬停时想要另一个div的div,它的透明度应该增加.我做过这样的事情
<div id="maincontainer">
<div id="picture"><img src="bill.jpg" alt="Bill Gates"></div>
<h1>A floating image</h1>
<p id="bill"></p>
<div id="mem">sfasdf</div>
</div>
<div id="column1">
<p>Haec disserens qua de re agatur et in quo causa consistat non
videt...</p>
</div>
<div id="column2">
<p>causas naturales et antecedentes, idciro etiam nostrarum
voluntatum...</p>
</div>
<div id="column3">
<p>nam nihil esset in nostra potestate si res ita se haberet...</p>
</div>
<div id="slide">
<ul>
<li id="ims"><img src="test.jpg" height="200" width="200" /></li>
<li id="sp"></li>
<li id="ims"><img src="test.jpg" height="200" width="200" /></li>
<li id="sp"></li>
<li id="ims"><img src="test.jpg" height="200" …