我是CSS新手.我想在悬停时想要另一个div的div,它的透明度会增加.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" width="200" /></li> <li id="sp"></li> <li id="ims"><img src="test.jpg" height="200" width="200" /></li> </ul> </div> <div id="left">l</div> <div id="right">R</div>
和css文件是
body { background-color: #FFCC66; background-repeat: no-repeat; background-attachment: scroll; background-position: 50% 100%; margin-top: 100px; margin-right: 40px; margin-bottom: 100px; margin-left: 70px; } #picture { height: 200px; width: 170px; float: left; } #column1 { float: left; width: 33%; } #column2 { float: left; width: 33%; } #column3 { float: left; width: 33%; } #bill { font-family: Verdana,Arial,Helvetica,sans-serif; font-size: 12px; letter-spacing: 2px; text-align: justify; line-height: 20px; } #mem { position: absolute; top: 300px; left: 150px; } #slide { overflow: hidden; position: absolute; height: 220px; width: 300px; top: 500px; left: 400px; background-color: #333399; z-index: 1; } #left { position: absolute; top: 500px; left: 400px; height: 220px; width: 30px; background-color: #FF33CC; z-index: 2; text-align: center; color: #000000; vertical-align: middle; opacity: .5; } #left :hover { position: absolute; top: 500px; left: 400px; height: 220px; width: 30px; background-color: #CCCC00; z-index: 2; text-align: center; color: #000000; filter: alpha(opacity = 10); -moz-opacity: 10; -khtml-opacity: 10; opacity: 10; cursor: pointer; }
我希望在悬停时增加id的透明度