JavaScrip——练习(做悬浮框进一步：悬浮窗后缀悬浮窗【感觉这种方法比较麻烦】)

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
*{
    margin:0px;
    padding:0px;
    }
#aa
{
    background-color:#FF0;
    
    height: 40px;
     100px;
    top: 60px;
    left: 100px;
    position: absolute;
    overflow: hidden;
    text-align: center;
    line-height:40px;
    }
#bb{
    
    height:120px;
    100px;
    top:40px;
    left:0px;
    position:absolute;
    
    
    
    }
table{
    
    height:120px;
    100px;
    text-align:center;
    vertical-align:middle;
}
#tiyu
{
    height:40px;
    100px;
    position:absolute;
    overflow:hidden;
    left:0px;
    top:0px;
    }
#zuqiu
{
    height:40px;
    100px;
    position:absolute;
    left:100px;
    top:0px;
    background-color:#C63;
    }
#yule
{
    height:40px;
    100px;
    position:absolute;
    overflow:hidden;
    left:0px;
    top:40px;
    }
#bagua
{
    height:40px;
    100px;
    position:absolute;
    left:100px;
    top:0px;
    background-color:#C63;
    }
#guoji
{
    height:40px;
    100px;
    position:absolute;
    overflow:hidden;
    left:0px;
    top:80px;
    }
#junshi
{
    height:40px;
    100px;
    position:absolute;
    left:100px;
    top:0px;
    background-color:#C63;
    }        
</style>
</head>

<body>
<div id="aa" onmousemove="over()" onmouseout="out()">新闻动态
<div id="bb">
<table cellpadding="0" cellspacing="0">

<tr bgcolor="#0000FF">

<td height="40" width="100"><div id="tiyu" onmouseover="over1()" onmouseout="out1()">体育<div id="zuqiu">足球</div></div></td>

</tr>

<tr bgcolor="#FFFF00">
<td height="40" width="100"><div id="yule" onmousemove="over2()" onmouseout="out2()">娱乐<div id="bagua">八卦</div></div></td>

</tr>

<tr bgcolor="#00FFFF">
<td height="40" width="100"><div id="guoji" onmouseover="over3()" onmouseout="out3()">国际新闻<div id="junshi">军事</div></div></td>
</tr>
</table>

</div></div>

</body>
</html>
<script>
function over()
{
    var a=document.getElementById("aa")
    a.setAttribute("style","overflow:visible;background-color:red");
    }
function out()
{
    var a=document.getElementById("aa")
    a.setAttribute("style","overflow:hidden:background-color:green"
);    }
function over1()
{
    var a=document.getElementById("tiyu")
    a.setAttribute("style","overflow:visible;background-color:red");
    }
function out1()
{
    var a=document.getElementById("tiyu")
    a.setAttribute("style","overflow:hidden:background-color:green"
);    }
function over2()
{
    var a=document.getElementById("yule")
    a.setAttribute("style","overflow:visible;background-color:red");
    }
function out2()
{
    var a=document.getElementById("yule")
    a.setAttribute("style","overflow:hidden:background-color:green"
);    }
function over3()
{
    var a=document.getElementById("guoji")
    a.setAttribute("style","overflow:visible;background-color:red");
    }
function out3()
{
    var a=document.getElementById("guoji")
    a.setAttribute("style","overflow:hidden:background-color:green"
);    }


</script>

结果：

默认时：

鼠标在新闻动态上面时：

鼠标在体育上面时：

鼠标在娱乐上面时：

鼠标在国际新闻上面时

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原文地址：https://www.cnblogs.com/Chenshuai7/p/5080361.html