Posted in Javascript onSeptember 21, 2016
本文实例讲述了jQuery+CSS3实现仿花瓣网固定顶部位置带悬浮效果的导航菜单。分享给大家供大家参考,具体如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="UTF-8"> <title>【推荐】Jquery+CSS3仿花瓣网固定顶部位置悬浮的导航菜单</title> <style type="text/css"> body,h1,ul{margin:0;} ul li{list-style-type:none;} #header{width:100%;border-top:solid 1px #ccc;border-bottom:solid 1px #ccc;text-align:center;} h1{padding:10px 0;color:#D74452;} .nav{width:1000px;background:#fff;margin:20px auto 0;border:solid 1px #ccc;zoom:1;border-radius:5px;box-shadow:0 1px 6px rgba(0,0,0,0.1);color:#D74452;} .nav_scroll{position:fixed;width:100%;margin:0;left:0;top:0;} .nav:after{content:"";display:block;height:0;clear:both;visibility:hidden;} .nav ul li{float:left;margin:0 20px;height:30px;line-height:30px;} .nav ul li a{cursor:pointer;} .nav ul li a:hover{text-decoration:underline;} h2{height:400px;line-height:400px;} </style> <script src="jquery-1.7.2.min.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function(){ var topMain=$("#header").height()+20//是头部的高度加头部与nav导航之间的距离 var nav=$(".nav"); $(window).scroll(function(){ if ($(window).scrollTop()>topMain){//如果滚动条顶部的距离大于topMain则就nav导航就添加类.nav_scroll,否则就移除 nav.addClass("nav_scroll"); }else{ nav.removeClass("nav_scroll"); } }); }) </script> </head> <body> <div id="header"><h1>花瓣</h1></div> <div class="nav"> <ul> <li><a>关注</a></li> <li><a>最新</a></li> <li><a>最热</a></li> <li><a>视频</a></li> <li><a>家居</a></li> <li><a>旅行</a></li> </ul> </div> <div style="background:#f9f9f9;color:#000;" id="cont"> <h2>1</h2> <h2>2</h2> <h2>3</h2> <h2>4</h2> <h2>5</h2> <h2>6</h2> <h2>7</h2> <h2>8</h2> <h2>1</h2> <h2>2</h2> <h2>3</h2> <h2>4</h2> <h2>5</h2> <h2>6</h2> <h2>7</h2> <h2>8</h2> <h2>1</h2> <h2>2</h2> <h2>3</h2> <h2>4</h2> <h2>5</h2> <h2>6</h2> <h2>7</h2> <h2>8</h2> <h2>1</h2> <h2>2</h2> <h2>3</h2> <h2>4</h2> <h2>5</h2> <h2>6</h2> <h2>7</h2> <h2>8</h2> <h2>1</h2> <h2>2</h2> <h2>3</h2> <h2>4</h2> <h2>5</h2> <h2>6</h2> <h2>7</h2> <h2>8</h2> </div> </body> </html>
运行效果图如下:
希望本文所述对大家JavaScript程序设计有所帮助。
jQuery+CSS3实现仿花瓣网固定顶部位置带悬浮效果的导航菜单
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