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jQuery realizes fixed top display of sliding page (can disappear and replace according to the display position)_jquery

WBOY
WBOYOriginal
2016-05-16 15:34:521210browse

The example in this article describes how jQuery implements fixed top display of sliding pages (can disappear and replace according to the display position). Share it with everyone for your reference, the details are as follows:

The jQuery introduced here pulls the fixed top display of the page and the automatic disappearing effect. There may be a problem under the IE browser, but it can be run on Firefox to see the effect. It is a simple web page special effect and is also a very commonly used "back to top" "The effect, if you are interested, take a look.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/jquery-fix-top-cha-show-codes/

The specific code is as follows: 

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>回到顶部：哭泣的小丑</title>
<script src="jquery-1.6.2.min.js"></script>
<!-- CSS模板清除 -->
<style>
html, body, div, span, applet, object, iframe,h1, h2, h3, h4, h5, h6, p, blockquote, pre,a, abbr, acronym, address, big, cite, code,del, dfn, em, img, ins, kbd, q, s, samp,small, strike, strong, sub, sup, tt, var,b, u, i, center,dl, dt, dd, ol, ul, li,fieldset, form, label, legend, input,table, caption, tbody, tfoot, thead, tr, th, td,article, aside, canvas, details, embed,figure, figcaption, footer, header, hgroup,menu, nav, output, ruby, section, summary,time, mark, audio, video {margin: 0;padding: 0;border: 0;font-size: 100%;}
article, aside, details, figcaption, figure,footer, header, hgroup, menu, nav, section {display: block;float:left;}select, input, button,button img, label {vertical-align: middle;}body {font:normal 12px/1.5 "Microsoft Yahei","微软雅黑",Tahoma,Arial,Helvetica,STHeiti; webkit-font-smoothing:antialiased;-moz-font-smoothing: subpixel-antialiased; color:#666;}ol, ul {list-style: none;}blockquote, q {quotes: none;}blockquote:before, blockquote:after,q:before, q:after {content: '';content: none;}table {border-collapse: collapse;border-spacing: 0;}em {font-style: normal}select, input, button, button img, label {vertical-align:middle;}input {font-family:"Microsoft Yahei","微软雅黑";webkit-font-smoothing:antialiased;-moz-font-smoothing: subpixel-antialiased}input, input:focus, button, button:focus, select,textarea, textarea:focus {outline:none; -moz-outline:none; -webkit-outline:none; }input:focus { outline:none; -moz-outline:none; -webkit-outline:none; }textarea {resize:none;}a {color:#666; text-decoration:none;} a:hover {text-decoration:underline;}a:focus {outline:none; -moz-outline:none;-webkit-outline:none;}body {min-width: 960px;}
</style>
<!-- CSS模板清除 E-->
<!-- main CSS -->
<style>
body{background:#e7e7e7;}
.clearfix:before, .clearfix:after, .container_24:before, .container_24:after {
 content: '.'; display: block; overflow: hidden; visibility: hidden; font-size: 0; line-height: 0; width: 0; height: 0;}
.clearfix:after, .container_24:after { clear: both; }
.Xc_main{width:750px;margin:0 auto;position:relative;}
.Xc_left{float:left;}
.Xc_left h1{font-size:24px;padding-top:25px;}
.Xc_right{float:right;width:600px;}
.Xc_right .Xc_list{margin:10px 0 10px 0;}
.Xc_list_top,.Xc_list_main{background:#fff;padding:10px;border:1px solid #ccc;}
.Xc_list_top{margin-bottom:10px;}
.Xc_gg{width:90px;height:90px;border:1px solid #ccc;background:#fff;text-align:center;}
.Xc_bottom{height:650px;background:#fff;padding:10px;border:1px solid #ccc;position:relative;}
</style>
<!-- main CSS E-->
</head>
<script>
$(function () {
 $(".Xc_list_top").css("width",$(".Xc_list_main").width());
 var resetRightPanelPostion = function () {
 var msie6 = $.browser.msie && $.browser.version == '6.0' && $.browser.version < 7;
 if ($.browser.safari) {
  bodyelem = $("body");
 } else {
  bodyelem = $("html,body");
 }
 var bodyTop = bodyelem.scrollTop();
 var top = $(".Xc_left").offset().top;
 //var t = $("#public_footer").offset().top;
 var t = $("#footerDestinationBox").offset().top;
 //var bottom = $("#footerDestinationBox").offset().top;
  for(var i = 0 ; i < $(".Xc_list .Xc_list_top").length ; i++){
   if (bodyTop >= top && ((bodyTop + $(".Xc_left").outerHeight()) < t)) {
    if (!msie6) {
     if (bodyTop + $(".Xc_gg").outerHeight() >= t) {
      $(".Xc_gg").removeClass('fixed').css({
       "position": "absolute",
       "top": t - $(".Xc_gg").outerHeight() + "px"
      });
     } else {
      $(".Xc_gg").css({
       "position": "fixed",
       "top": 0
      });
     }
    }
   } else {
    if (!msie6) {
     $(".Xc_gg").css({
      "position": "static"
     });
    }
   }
   if(bodyTop>$(".Xc_list").eq(i).offset().top){
    $(".Xc_list_top").eq(i).css({position:"absolute",top:top-168});
   }
   if(bodyTop>$(".Xc_list").eq(i).offset().top){
    $(".Xc_list_top").eq(i).css({position:"fixed",top:0});
   }
   if(bodyTop<=$(".Xc_list").eq(i).offset().top){
    $(".Xc_list_top").eq(i).css({position:"static",top:0});
   }
  }
 };
 window.onload = function () {
 if ($(".Xc_gg").length) {
  resetRightPanelPostion();
  $(window).scroll(function () {
  resetRightPanelPostion();
  });
 }
 }
})
</script>
<body>
<div class="Xc_main clearfix">
 <div class="clearfix" style="margin-top:90px;float:left;">
 <div class="Xc_left">
  <div class="Xc_gg">
  <h1>小丑</h1>
  <div style="margin-top:40px;">Q群:<em style="color:#0069D6;">150508281</em></div>
  </div>
 </div>
 </div>
 <div class="Xc_right clearfix">
  <div class="Xc_list">
  <div class="Xc_list_top" id="Xc_list_top">top 1</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 <div class="Xc_list">
  <div class="Xc_list_top">top 2</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 <div class="Xc_list">
  <div class="Xc_list_top">top 3</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 <div class="Xc_list">
  <div class="Xc_list_top">top 4</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 <div class="Xc_list">
  <div class="Xc_list_top">top 5</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 <div class="Xc_list">
  <div class="Xc_list_top">top 6</div>
  <div class="Xc_list_main" style="height:300px;background:#fff;">
  </div>
 </div>
 </div>
</div>
<div class="Xc_bottom clearfix" id="footerDestinationBox">
 <div style="position:absolute;top:40px;right:50px;"> by 蓝色理想 @哭泣的小丑</div>
</div>
</body>
</html>

I hope this article will be helpful to everyone in jQuery programming.

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