双倍边距bug

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>


    <style>

        *{margin: 0; padding: 0;}
        li{ 59px;
            height: 87px;
            float: left;
            margin: 20px;
            background: #333333;
            position: relative;
            list-style: none;



        }

/**display:inline;zoom:1   *vertical:top margin: 20px;改成 margin:0 20px;如果给ul浮动就没事了 双倍边距bug的条件 浮动 外编剧 块状元素 解决双倍边距bug
#div1{ 594px; margin: 50px; border-top:1px solid #333;} #div1 ul li div{ 232px; height: 143px; background: #666666 url("img/tip.png") no-repeat; position: absolute; top: -150px; left: 20px; display: none; }
</style> <script> window.onload=function(){ var aLi= document.getElementsByTagName("li") for(var i=0; i<aLi.length;i++){ aLi[i].onmouseover=function(){ this.getElementsByTagName("div")[0].style.display="block"; } aLi[i].onmouseout=function(){ this.getElementsByTagName("div")[0].style.display="none"; } } } </script> </head> <body> <h1>最新上线</h1> <div style="1px solid #000;" id="div1"> <ul class="ul1"> <li><img src="img/1.png" ><div></div></li> <li><img src="img/2.png"><div></div></li> <li><img src="img/3.png"><div></div></li> <li><img src="img/4.png" ><div></div></li> <li><img src="img/5.png" ><div></div></li> <li><img src="img/6.png" ><div></div></li> </ul> <ul class="ul1"> <li><img src="img/7.png"><div></div></li> <li><img src="img/8.png"><div></div></li> <li><img src="img/9.png"><div></div></li> <li><img src="img/10.png"><div></div></li> <li><img src="img/11.png"><div></div></li> <li><img src="img/12.png"><div></div></li> </ul> </div> </body> </html>

  

原文地址:https://www.cnblogs.com/aix1314/p/3810683.html