JS实现网页顶部向下滑出的全国城市切换导航效果

邢飞雨

2023-03-14

本文向大家介绍JS实现网页顶部向下滑出的全国城市切换导航效果，包括了JS实现网页顶部向下滑出的全国城市切换导航效果的使用技巧和注意事项，需要的朋友参考一下

本文实例讲述了JS实现网页顶部向下滑出的全国城市切换导航效果。分享给大家供大家参考。具体如下：

这是一款JS版网页顶部向下滑出的城市切换导航，仿sohu团购网页顶部的城市导航切换，从顶部向下滑出，方便在其他城市之间切换。使用了sohu网原版的一个JS封装插件来实现，目前只是为了演示，所以全国城市不全，使用者自己添加吧。

运行效果截图如下：

在线演示地址如下：

http://demo.jb51.net/js/2015/js-web-scroll-city-cha-style-codes/

具体代码如下：

<!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>
<title>网页顶部向下滑出的切换城市导航</title>
<style>
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,form,img,dl,dt,dd,table,th,td,blockquote,fieldset,div,strong,label,em{margin:0;padding:0;border:0;}
ul,ol,li{list-style:none;}
input,button{margin:0;font-size:12px;vertical-align:middle;}
body{font-size:12px;font-family:Arial, Helvetica, sans-serif; text-align:center; margin:0 auto;}
table{border-collapse:collapse;border-spacing:0;}
p{line-height:24px}
.clearfloat{height:0;font-size:1px;clear:both;line-height:0;}
#container{ width:960px; text-align:left; margin:0 auto; }
a{color:#333;text-decoration:none;}
a:hover{color:#ef9b11; text-decoration:underline;}
.header{ background:url(images/tuan_head_01.gif) repeat-x; height:32px;}
.header .topCtiy {PADDING-RIGHT: 10px; PADDING-TOP: 4px; HEIGHT: 22px}
.header .topCtiy UL {FLOAT: right}
.header .topCtiy LI {PADDING-RIGHT: 10px; DISPLAY: inline; PADDING-LEFT: 10px; FLOAT: left; PADDING-BOTTOM: 0px; MARGIN-LEFT: 3px; COLOR: #fff; LINE-HEIGHT: 22px; PADDING-TOP: 0px}
.header .topCtiy LI.i1 {PADDING-RIGHT: 13px; PADDING-LEFT: 13px; FONT-WEIGHT: bold; FONT-SIZE: 14px; BACKGROUND: #e16e6e; PADDING-BOTTOM: 0px; PADDING-TOP: 0px}
.header .topCtiy LI.i2 {BACKGROUND: url(images/tuan_icon10.gif) no-repeat 100% 50%; CURSOR: pointer}
.header .topCtiy LI A {COLOR: #fff}
.header .topCtiy LI A:hover {COLOR: #fff}
.selCity {PADDING-RIGHT: 0px; PADDING-LEFT: 0px; Z-INDEX: 10; BACKGROUND: url(images/tuan_bgx06.gif) #7e2725 repeat-x 50% bottom; PADDING-BOTTOM: 4px; WIDTH: 100%; PADDING-TOP: 2px; POSITION: relative;}
.selCity .none {LEFT: 47.5%; BOTTOM: -18px; POSITION: absolute}
.selCity .none A {DISPLAY: block; BACKGROUND: url(images/tuan_bg15.gif) no-repeat; WIDTH: 68px; TEXT-INDENT: -3000px; HEIGHT: 21px; TEXT-DECORATION: none}
.selCity .none A:hover {DISPLAY: block; BACKGROUND: url(images/tuan_bg15.gif) no-repeat; WIDTH: 68px; TEXT-INDENT: -3000px; HEIGHT: 21px; TEXT-DECORATION: none}
.selCity TABLE {MARGIN: 0px auto; WIDTH: 950px; BORDER-COLLAPSE: collapse}
.selCity TABLE TD {BORDER-RIGHT: #8b3d3b 1px dashed; BORDER-TOP: #8b3d3b 1px dashed; FONT-SIZE: 14px; VERTICAL-ALIGN: middle; BORDER-LEFT: #8b3d3b 1px dashed; WIDTH: 157px; COLOR: #fff; BORDER-BOTTOM: #8b3d3b 1px dashed; HEIGHT: 39px; TEXT-ALIGN: center}
.selCity TABLE TD A {DISPLAY: block; COLOR: #fff; LINE-HEIGHT: 40px; HEIGHT: 40px; TEXT-DECORATION: none}
.selCity TABLE TD A:hover {BACKGROUND: #a86e6d; COLOR: #fff; TEXT-DECORATION: none}
.selCity TABLE TD A.cur {BACKGROUND: #a86e6d}
.header .box {MARGIN-TOP: 36px; TEXT-ALIGN: left}
.header .lab_city {MARGIN-TOP: 1px; FLOAT: left; WIDTH: 210px; COLOR: #fff; POSITION: relative; HEIGHT: 25px}
.header .sel_fl {PADDING-RIGHT: 10px; PADDING-LEFT: 10px; BACKGROUND: #400a09; LEFT: -97px; PADDING-BOTTOM: 27px; WIDTH: 361px; PADDING-TOP: 23px; POSITION: absolute; TOP: 28px}
.header .sel_fl TABLE {BORDER-COLLAPSE: collapse}
.header .sel_fl TABLE TD {
BORDER-RIGHT: #8b3d3b 1px dashed; BORDER-TOP: #8b3d3b 1px dashed; FONT-SIZE: 14px; VERTICAL-ALIGN: middle; BORDER-LEFT: #8b3d3b 1px dashed; WIDTH: 88px; COLOR: #fff; BORDER-BOTTOM: #8b3d3b 1px dashed; HEIGHT: 34px; TEXT-ALIGN: center}
.header .sel_fl TABLE TD.first {BORDER-LEFT-WIDTH: 0px}
.header .sel_fl TABLE TD.last {BORDER-RIGHT-WIDTH: 0px}
.header .sel_fl TABLE TD A {DISPLAY: block; LINE-HEIGHT: 34px; HEIGHT: 34px; TEXT-DECORATION: none}
.header .sel_fl TABLE TD A:hover {DISPLAY: block; LINE-HEIGHT: 34px; HEIGHT: 34px; TEXT-DECORATION: none}
.header .sel_fl TABLE TD A:hover {BACKGROUND: #5c2f2e}
.header .sel_fl TABLE TD A.cur {BACKGROUND: #5c2f2e}
.header .lab_city .city {FONT-WEIGHT: bold; FONT-SIZE: 14px; BACKGROUND: url(images/tuan_bg01.gif) no-repeat 100% 0px; FLOAT: left; WIDTH: 70px; LINE-HEIGHT: 25px; MARGIN-RIGHT: 16px; TEXT-ALIGN: center}
.header .lab_city .txt {DISPLAY: inline-block; CURSOR: pointer; PADDING-TOP: 8px}
</style>
</head>
<BODY>
<DIV class=selCity id=allCity style="DISPLAY: none">
<DIV class=area>
<TABLE>
 <TBODY>
 <TR>
 <TD><A class=cur href="#">北京</A></TD>
 <TD><A href="#">上海</A></TD>
 <TD><A href="#">广州</A></TD>
 <TD><A href="#">深圳</A></TD>
 <TD><A href="#">西安</A></TD></TR>
 <TR>
 <TD><A href="#">天津</A></TD>
 <TD><A href="#">南京</A></TD>
 <TD><A href="#">成都</A></TD>
 <TD><A href="#">杭州</A></TD>
 <TD><A href="#">济南</A></TD></TR>
 <TR>
 <TD><A href="#">哈尔滨</A></TD>
 <TD><A href="#">海南</A></TD>
 <TD><A href="#">沈阳</A></TD>
 <TD><A href="#">大连</A></TD>
 <TD><A href="#">石家庄</A></TD></TR>
 <TR>
 <TD><A href="#">长春</A></TD>
 <TD><A href="#">郑州</A></TD>
 <TD>&nbsp;</TD>
 <TD>&nbsp;</TD>
 <TD>&nbsp;</TD>
 <TD>&nbsp;</TD></TR></TBODY></TABLE>
<DIV class=none><A id=foldin href="javascript:;">收起</A></DIV></DIV></DIV>
<DIV class=header>
 <DIV class=area>
  <DIV class=r>
   <DIV class="topCtiy clear">
    <UL>
     <LI class=i1>北京 </LI>
     <LI class=i2 id=changeCity>切换城市 </LI>
    </UL>
   </DIV>
  </DIV>
 </DIV>
</DIV>
<SCRIPT src="js/sohu.js" type=text/javascript></SCRIPT>
<SCRIPT type=text/javascript>
jQuery(function(){
$("#changeCity").click(function(a){$("#allCity").slideDown(300);a.stopPropagation();$(this).blur()});$("#allCity").click(function(a){a.stopPropagation()});$(document).click(function(a){a.button!=2&&$("#allCity").slideUp(300)});$("#foldin").click(function(){$("#allCity").slideUp(300)})
});
</SCRIPT>
<br /><br />
<p></p>
</body>
</html>

希望本文所述对大家的javascript程序设计有所帮助。

JS实现网页顶部向下滑出的全国城市切换导航效果

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