HTML DHTML JavaScript CSS DropDown Menu-优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_11981/article/details/82174739

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>无标题页</title>
    <script type="text/javascript">
<!--
var timeout         = 500;
var closetimer  = 0;
var ddmenuitem      = 0;

// open hidden layer
function mopen(id)
{
// cancel close timer
mcancelclosetime();

// close old layer
if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

// get new layer and show it
ddmenuitem = document.getElementById(id);
ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
if(closetimer)
{
window.clearTimeout(closetimer);
closetimer = null;
}
}

// close layer when click-out
document.onclick = mclose;
// -->
</script>
<style>
#sddm
{ margin: 0;
padding: 0;
z-index: 30}

#sddm li
{ margin: 0;
padding: 0;
list-style: none;
float: left;
font: bold 11px arial}

#sddm li a
{ display: block;
margin: 0 1px 0 0;
padding: 4px 10px;
width: 60px;
background: #5970B2;
color: #FFF;
text-align: center;
text-decoration: none}

#sddm li a:hover
{ background: #49A3FF}

#sddm div
{ position: absolute;
visibility: hidden;
margin: 0;
padding: 0;
background: #EAEBD8;
border: 1px solid #5970B2}

#sddm div a
{ position: relative;
  display: block;
  margin: 0;
  padding: 5px 10px;
  width: auto;
  white-space: nowrap;
  text-align: left;
  text-decoration: none;
  background: #EAEBD8;
  color: #2875DE;
  font: 11px arial}

#sddm div a:hover
{ background: #49A3FF;
color: #FFF}

</style>
</head>
<body>
    <form id="form1" runat="server">
    <ul id="sddm">
        
        <li><a href="#" οnmοuseοver="mopen('m1')" οnmοuseοut="mclosetime()">Home</a>
            <div id="m1" οnmοuseοver="mcancelclosetime()" οnmοuseοut="mclosetime()">
                <a href="#">HTML DropDown</a> <a href="#">DHTML DropDown menu</a> <a href="#">JavaScript
                    DropDown</a> <a href="#">DropDown Menu</a> <a href="#">CSS DropDown</a>
            </div>
        </li>
        <li><a href="#" οnmοuseοver="mopen('m2')" οnmοuseοut="mclosetime()">Download</a>
            <div id="m2" οnmοuseοver="mcancelclosetime()" οnmοuseοut="mclosetime()">
                <a href="#">ASP Dropdown</a> <a href="#">Pulldown menu</a> <a href="#">AJAX dropdown</a>
                <a href="#">DIV dropdown</a>
            </div>
        </li>
        <li><a href="#" οnmοuseοver="mopen('m3')" οnmοuseοut="mclosetime()">Order</a>
            <div id="m3" οnmοuseοver="mcancelclosetime()" οnmοuseοut="mclosetime()">
                <a href="#">Visa Credit Card</a> <a href="#">Paypal</a>
            </div>
        </li>
        <li><a href="#" οnmοuseοver="mopen('m4')" οnmοuseοut="mclosetime()">Help</a>
            <div id="m4" οnmοuseοver="mcancelclosetime()" οnmοuseοut="mclosetime()">
                <a href="#">Download Help File</a> <a href="#">Read online</a>
            </div>
        </li>
        <li><a href="#" οnmοuseοver="mopen('m5')" οnmοuseοut="mclosetime()">Contact</a>
            <div id="m5" οnmοuseοver="mcancelclosetime()" οnmοuseοut="mclosetime()">
                <a href="#">E-mail</a> <a href="#">Submit Request Form</a> <a href="#">Call Center</a>
            </div>
        </li>
    </ul>
    <div style="clear: both">
    </div>
    <div style="clear: both">
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    </div>