<script type="text/javascript">
$(document).ready(function(){
$("div").last().addClass('highlight') //添加class
$("div").last().css("background", "red")//直接添加样式
})
</script>
如果是css控制，需要在div里面添加class样式，或者写行内样式控制：
<div style="color:red" class="color">内容</div>
<style>
.color{color:red}
</style>
新建一个HTML文件粘过去:<p onclick="rotateDIV()" id="rotate1" class="animated_div" style="transform: rotate(360deg)">2D 旋转</p>
<p onclick="rotateYDIV()" id="rotatey1" class="animated_div" style="transform: rotateY(180deg)">3D 旋转</p>
<style>
p {
margin: 12px 0 0 0
line-height: 150%
}
#rotate1, #rotatey1 {
border: 1px solid #000000
background: red
margin: 10px
opacity: 0.7
}
.animated_div {
width: 60px
height: 40px
color: #ffffff
position: relative
font-weight: bold
padding: 20px 10px 0px 10px
float: left
margin: 20px
margin-right: 50px
border: 1px solid #888888
-webkit-border-radius: 5px
-moz-border-radius: 5px
border-radius: 5px
font: 12px Verdana, Arial, Helvetica, sans-serif
line-height: normal
text-align: center
vertical-align: middle
}
#rotate1,#rotatey1 { border:1px solid #000000 background:red margin:10px opacity:0.7 }
</style>
<script><!--var x,y,n=0,ny=0,rotINT,rotYINTfunction rotateDIV(){x=document.getElementById("rotate1")clearInterval(rotINT)rotINT=setInterval("startRotate()",10)}function rotateYDIV(){y=document.getElementById("rotatey1")clearInterval(rotYINT)rotYINT=setInterval("startYRotate()",10)}function startRotate(){n=n+1x.style.transform="rotate(" + n + "deg)"x.style.webkitTransform="rotate(" + n + "deg)"x.style.OTransform="rotate(" + n + "deg)"x.style.MozTransform="rotate(" + n + "deg)"if (n==180 || n==360) { clearInterval(rotINT) if (n==360){n=0} }}function startYRotate(){ny=ny+1y.style.transform="rotateY(" + ny + "deg)"y.style.webkitTransform="rotateY(" + ny + "deg)"y.style.OTransform="rotateY(" + ny + "deg)"y.style.MozTransform="rotateY(" + ny + "deg)"if (ny==180 || ny>=360) { clearInterval(rotYINT) if (ny>=360){ny=0} }}//--></script>
