js实现下拉菜单

发布时间：2020-08-05 13:38:28 作者：素颜猪
来源：网络阅读：252

效果:

js实现下拉菜单

代码:

<!DOCTYPE html>

<html>

<head>

<title>js实现下拉列表</title>

*{margin: 0px;padding: 0px}

.nav{background-color: #eee;width: 600px;height: 40px;margin: 0 auto;}

.nav-ul{list-style: none;}

.nav-ul li{float: left;line-height: 40px;text-align: center;position: relative;}

.nav-ul li a {text-decoration: none;color: #000;display: block;padding:0 10px;}

.nav-ul li a:hover{color: #FFF;background-color: #666}

.nav-ul li .nav-ul-li-ul{position: absolute;left: 0px; top:40px;display: none;}

.nav-ul li .nav-ul-li-ul li {list-style: none; float: none;background-color: #eee;margin-top: 2px;}

.nav-ul li .nav-ul-li-ul li a:hover{color: #FFF;background-color: #36e}

</style>

鼠标离开事件

function hidesubment (li) {

//获取子菜单对象

var submenuobj = li.getElementsByClassName("nav-ul-li-ul")[0];

//设置显示的属性

submenuobj.style.display = "none";

}

鼠标经过事件

function showsubmenu (li) {

//获取对象

var submenuobj = li.getElementsByClassName("nav-ul-li-ul")[0];

//设置显示的属性

submenuobj.style.display = "block";

}

</script>

</head>

<body>

</ul>

</li>

</ul>

</div>

</body>

</html>

js实现下拉菜单

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