Using js attributes to achieve the effect of horizontal drop-down menu in html5 (code)-JS Tutorial-php.cn

Using js attributes to achieve the effect of horizontal drop-down menu in html5 (code)

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Release： 2018-08-13 16:17:13

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The content of this article is about the effect of using js attributes to achieve horizontal drop-down menus in HTML5. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

<!doctype html>
<html>
<head>
<title></title>
<meta charset="utf-8">
<style>
    *{padding:0px;}
    p{margin:20px 150px;}
    ul{list-style:none;}
    ul li{float:left;position:relative;}
    ul li a{text-decoration:none;
            background:#900;
            height:40px;
            display:block;
            color:#fff;
            font-weight:bold;
            line-height:40px;
            text-align:center;
            margin-right:1px;
            padding:0px 15px;
    }
    ul li a:hover{background:#f90;}
    ul li ul li{float:none;}
    ul li ul{position:absolute;top:41px;left:0px;
            display:none;
    }
</style>
<script>
    function showmenu(li){
    var submenu=li.getElementsByTagName("ul")[0];
    submenu.style.display="block";
    }
    function hidemenu(op){
    var submenu=op.getElementsByTagName("ul")[0];
    submenu.style.display="none";
    }
</script>
</head>
<body>
    <p>
    <ul>
        <li><a href="#">学校简介</a></li>
        <li onmouseover="showmenu(this)" onmouseleave="hidemenu(this)"><a href="#">管理机构</a></li>
        <li onmouseover="showmenu(this)" onmouseleave="hidemenu(this)"><a href="#">学院设置</a>
        <ul>
            <li><a href="#">电气学院</a></li>
            <li><a href="#">材料学院</a></li>
            <li><a href="#">测绘学院</a></li>
            <li><a href="#">安全学院</a></li>
            <li><a href="#">体育学院</a></li>
            <li><a href="#">化工学院</a></li>
        </ul>
        </li>
        <li onmouseover="showmenu(this)" onmouseleave="hidemenu(this)"><a href="#">科学研究</a>
            <ul>
            <li ><a href="#">科研机构</a></li>
            <li ><a href="#">科研平台</a></li>
            <li ><a href="#">科研论文</a></li>
            <li ><a href="#">成果转化</a></li>
            </ul>
        </li>
        <li onmouseover="showmenu(this)" onmouseleave="hidemenu(this)"><a href="#">招生就业</a>
            <ul>
            <li ><a href="#">本科生招生</a></li>
            <li ><a href="#">硕士生招生</a></li>
            <li ><a href="#">博士生招生</a></li>
            <li ><a href="#">就业信息</a></li>
            </ul>
        </li>
        <li><a href="#">呼唤英才</a></li>
    </ul>
    </p>
</body>
</html>

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