效果图:
代码如下:
代码如下 | 复制代码 |
*{margin:0; padding:0; list-style:none;} ul{ overflow:hidden; background:#ccc; width:574px; margin:100px auto; position:relative;} ul li{ float:left; width:80px; height:40px; text-align:center; line-height:40px; border:1px solid #000; position:relative; z-index:2;} #block_box{ position:absolute; top:0; left:0; background:#399; z-index:1;} var left = 0; var iSpeed = 0; function move(obj,iTarget){ clearInterval(obj.timer); obj.timer = setInterval(function(){ iSpeed+=(iTarget-left)/5; iSpeed*=0.75; left+=iSpeed; obj.style.left = left+'px'; if(Math.round(iSpeed)==0&&Math.round(left)==iTarget){ clearInterval(obj.timer); } },30); } window.onload = function(){ var aLi = document.getElementsByTagName('li'); var oBlock = document.getElementById('block_box'); var iNow = 0; for(var i=0;i ;(function(index){ aLi[i].onmouseover=function(){ //oBlock.style.left=index*aLi[0].offsetWidth+'px'; move(oBlock,index*aLi[0].offsetWidth); }; aLi[i].onmouseout=function(){ //oBlock.style.left=0; move(oBlock,iNow*aLi[0].offsetWidth); }; aLi[i].onclick=function(){ iNow=index; }; })(i); } };
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