jQuery滑出效果的下拉菜单导航-插件特效-星河码客

为你的基础上创建一个无序列表导航。然后简单的嵌套另一个无序列表子导航。

接下来,CSS样式的导航线框图。ul.topnav { list-style: none; padding: 0 20px; margin: 0; float: left; width: 920px; background: #222; font-size: 1.2em; background: url(topnav_bg.gif) repeat-x;}ul.topnav li { float: left; margin: 0; padding: 0 15px 0 0; position: relative; /*--Declare X and Y axis base for sub navigation--*/}ul.topnav li a{ padding: 10px 5px; color: #fff; display: block; text-decoration: none; float: left;}ul.topnav li a:hover{ background: url(topnav_hover.gif) no-repeat center top;}ul.topnav li span { /*--Drop down trigger styles--*/ width: 17px; height: 35px; float: left; background: url(subnav_btn.gif) no-repeat center top;}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: #333; 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: #333 url(dropdown_linkbg.gif) no-repeat 10px center; padding-left: 20px;}html ul.topnav li ul.subnav li a:hover { /*--Hover effect for subnav links--*/ background: #222 url(dropdown_linkbg.gif) no-repeat 10px center;}步骤3。jQuery下面的脚本包含注释解释jQuery行动正在进行。$(document).ready(function(){ $("ul.subnav").parent().append(""); //Only shows drop down trigger when js is enabled (Adds empty span tag after ul.subnav*) $("ul.topnav li span").click(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" }); });

jQuery滑出效果的下拉菜单导航

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