下拉菜单-jQuery/CSS [英] Drop Down Menu - jQuery/CSS
本文介绍了下拉菜单-jQuery/CSS的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在执行下拉菜单时遇到问题.请查看以下屏幕截图: http://img215.imageshack.us/img215/8449/hovermenu .png
I have a problem with a dropdown menu I am doing. Please check this screenshot out: http://img215.imageshack.us/img215/8449/hovermenu.png
这是html代码:
<ul class="topnav">
<li><a href="#">Home</a></li>
<li>
<a href="#" class="subnavkey">Tutorials</a>
<ul class="subnav">
<li><a href="#">Sub Nav Link</a></li>
<li><a href="#">Sub Nav Link</a></li>
</ul>
</li>
<li>
<a href="#" class="subnavkey">Resources</a>
<ul class="subnav">
<li><a href="#">Sub Nav Link</a></li>
<li><a href="#">Sub Nav Link</a></li>
</ul>
</li>
<li><a href="#">About Us</a></li>
<li><a href="#">Advertise</a></li>
<li><a href="#">Submit</a></li>
<li><a href="#">Contact Us</a></li>
</ul>
这是jQuery代码:
And here is the jQuery code:
$(document).ready(function(){
$("ul.subnav").parent().append("<span></span>"); //Only shows drop down trigger when js is enabled (Adds empty span tag after ul.subnav*)
$(".subnavkey").hover(function() { //When trigger is clicked...
//Following events are applied to the subnav itself (moving subnav up and down)
$(this).parent().find("ul.subnav").slideDown('fast').show(); //Drop down the subnav on click
$(this).parent().hover(function() {
}, function(){
$(this).parent().find("ul.subnav").slideUp('slow'); //When the mouse hovers out of the subnav, move it back up
});
//Following events are applied to the trigger (Hover events for the trigger)
}).hover(function() {
$(this).addClass("subhover"); //On hover over, add class "subhover"
}, function(){ //On Hover Out
$(this).removeClass("subhover"); //On hover out, remove class "subhover"
});
});
这是CSS:
ul.topnav {
background: url(../images/topmenubg.png);
background-repeat: repeat-x;
border-radius:16px;
border-color:#a5a7a8;
list-style: none;
float: right;
font-size: 1.2em;
list-style-type:none;
text-align: left;
padding:0px;
margin-top:9px;
}
ul.topnav li {
float: left;
margin: 0;
padding: 10px;
position: relative; /*--Declare X and Y axis base for sub navigation--*/
border-color:#D9D9D9;
border-width:0px 1px 0px 0px;
border-style:solid;
display:block;
font-weight:500;
color:#333;
height:14px;
}
ul.topnav li:last-child{
border-width:0px;
}
ul.topnav li span { /*--Drop down trigger styles--*/
float: left;
}
ul.topnav li span.subhover {background-position: center bottom; cursor: pointer;} /*--Hover effect for trigger--*/
ul.topnav li ul.subnav {
list-style: none;
position: absolute; /*--Important - Keeps subnav from affecting main navigation flow--*/
left: 0; top: 35px;
background: #fff;
margin: 0; padding: 0;
display: none;
float: left;
width: 170px;
border: 1px solid #111;
}
ul.topnav li ul.subnav li{
margin: 0; padding: 0;
border-top: 1px solid #252525; /*--Create bevel effect--*/
border-bottom: 1px solid #444; /*--Create bevel effect--*/
clear: both;
width: 170px;
}
html ul.topnav li ul.subnav li a {
float: left;
width: 145px;
background: #fff;
padding-left: 20px;
}
html ul.topnav li ul.subnav li a:hover { /*--Hover effect for subnav links--*/
background: #fff;
}
如屏幕截图所示,它仅显示子菜单"/下拉菜单"中第一个链接的一小部分.而且如HTML代码所示,还有更多链接.
As you can see in the screenshot, it only shows a little part of the first link in the "sub-menu"/"dropdown-menu". And as the HTML code shows, there are more links.
如何显示所有链接?
推荐答案
使用 删除 以轻松创建下拉菜单.无需CSS或额外的javascript.
Use DROPPY to make dropdown menus easily. No css or extra javascript is required.
请参见以下示例:
<link rel="stylesheet" href="http://onehackoranother.com/projects/jquery/droppy/stylesheets/droppy.css" type="text/css" />
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.1/jquery.min.js"/></script>
<script src="http://onehackoranother.com/projects/jquery/droppy/javascripts/jquery.droppy.js"/></script>
<ul class="topnav">
<li><a href="#">Home</a></li>
<li>
<a href="#" class="subnavkey">Tutorials</a>
<ul class="subnav">
<li><a href="#">Sub Nav Link</a></li>
<li><a href="#">Sub Nav Link</a></li>
</ul>
</li>
<li>
<a href="#" class="subnavkey">Resources</a>
<ul class="subnav">
<li><a href="#">Sub Nav Link</a></li>
<li><a href="#">Sub Nav Link</a></li>
</ul>
</li>
<li><a href="#">About Us</a></li>
<li><a href="#">Advertise</a></li>
<li><a href="#">Submit</a></li>
<li><a href="#">Contact Us</a></li>
$(function () {
$('.topnav').droppy();
});
Droppy: http://onehackoranother.com/projects/jquery/droppy/
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