信息滚动效果的实例讲解

程序员文章站 2022-09-08 13:42:42

html：

html：

<!doctype html>
<html lang="en">
<head>
 <meta charset="utf-8" />
 <title>向上无缝滚动</title>
 <link rel="stylesheet" href="style.css" rel="external nofollow" >
</head>

<body>
<!-- 慕课网课程公告开始 -->
<div id="mooc">
 <!-- 头部 -->
 <h3 id="mooctitle">最新课程<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" target="_self">更多>></a> </h3>
 <!-- 头部结束 -->
 <!-- 中间 -->
 <div id="moocbox">
  <ul id="con1">
   <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >1.学会html5 绝对的屌丝逆袭（案例）</a><span>2013-09-18</span></li>
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   <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >3.圆角水晶按钮制作（案例）</a><span>2013-10-21</span></li>
   <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >4.html+css基础课程(系列)</a><span>2013-11-01</span></li>
   <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >5.分页页码制作（案例）</a><span>2013-11-06</span></li>
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  </ul>
  <ul id="con2">
  </ul>
 </div>
 <!-- 中间结束 -->
</div>
<!-- 课程公告结束 -->

<script type="text/javascript" src="js.js"></script>
</body>
</html>

css：

body {
 font-size: 12px;
 line-height: 24px;
 text-algin: center;  /* 页面内容居中 */
}
body, h3, ul, li, a {
 margin: 0;
 padding: 0;   /* 去掉所有标签的marign和padding的值 */
}
ul {
 list-style: none;   /* 去掉ul标签默认的点样式 */
}
a img {
 border: none;  /* 超链接下，图片的边框 */
}
a {
 color: #333;
 text-decoration: none;  /* 超链接样式 */
}
a:hover {
 color: #ff0000;
}
#mooc {
 width: 399px;
 border: 5px solid #ababab;
 -moz-border-radius: 15px;  /* gecko browsers */
 -webkit-border-radius: 15px; /* webkit browsers */
 border-radius: 15px;
 box-shadow: 2px 2px 10px #ababab;
 margin: 50px auto 0;
 text-align: left;    /* 让新闻内容靠左 */
}
/* 头部样式 */
#mooctitle {
 height: 62px;
 overflow: hidden; /* 这个一定要加上，内容超出的部分要隐藏，免得撑高头部 */
 font-size: 26px;
 line-height: 62px;
 padding-left: 30px;
 background-image: -moz-linear-gradient(top, #f05e6f, #c9394a); /* firefox */
 background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #f05e6f), color-stop(1, #c9394a)); /* saf4+, chrome */
 filter: progid:dximagetransform.microsoft.gradient(startcolorstr='#8fa1ff', endcolorstr='#f05e6f', gradienttype=0); /* ie*/
 border: 1px solid #f05e6f;
 -moz-border-radius: 8px 8px 0 0;  /* gecko browsers */
 -webkit-border-radius: 8px 8px 0 0; /* webkit browsers */
 border-radius: 8px 8px 0 0;
 color: #fff;
 position: relative;
}
#mooctitle a {
 position: absolute;
 right: 10px;
 bottom: 10px;
 display: inline;
 color: #fff;
 font-size: 12px;
 line-height: 24px;
}
/* 底部样式 */
#moocbot {
 width: 399px;
 height: 10px;
 overflow: hidden;  /* 这个一定要加上，内容超出的部分要隐藏，免得撑高底部结构 */
}
/* 中间样式 */
#moocbox {
 height: 144px;
 width: 335px;
 margin-left: 25px;
 margin-top: 10px;
 margin-bottom: 10px;
 overflow: hidden; /* 这个一定要加，超出的内容部分要隐藏，免得撑高中间部分 */
}
#mooc ul{
 display: inline-block;
}
#mooc ul li {
 height: 24px;
}
#mooc ul li a {
 width: 180px;
 float: left;
 display: block;
 overflow: hidden;
 text-indent: 15px;
 height: 24px;
}
#mooc ul li span {
 float: right;
 color: #999;
}

js：

var box = document.getelementbyid("moocbox");
var con1 = document.getelementbyid("con1");
var con2 = document.getelementbyid("con2");
var speed = 50;
con2.innerhtml = con1.innerhtml;
function scrollup() {
 if(box.scrolltop>=con1.scrollheight){
  box.scrolltop = 0;
 }else {
  box.scrolltop++;
 }
}
var myscroll = setinterval("scrollup()",speed);
box.onmouseover = function () {
 clearinterval(myscroll);
};
box.onmouseout = function () {
 myscroll = setinterval("scrollup()",speed);
}

效果图：

信息滚动效果的实例讲解

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