This time I will show you how to achieve circular scrolling of lists with html+css+javascript. What are the precautions for implementing circular scrolling of lists with html+css+javascript? Here are the practical cases. Let’s take a look. .
Instructions: Set time timing and replace the content of the previous node within the specified time1. Key code: javascript:
<script type="text/javascript"> var dome=document.getElementById("dome"); //获取节点 var dome1=document.getElementById("dome1"); var dome2=document.getElementById("dome2"); var speed=50;//设置向上轮动的速度 dome2.innerHTML=dome1.innerHTML;//复制节点 关键语句 function moveTop(){ if(dome1.offsetHeight-dome.scrollTop<=0){//判断内容第一次是否循环完了 dome.scrollTop=0; }else{ dome.scrollTop++;//否则上移 } } var myFunction=setInterval("moveTop()",speed);//设置时间定时 dome.onmouseover=function(){//鼠标放在区域内停止 clearInterval(myFunction); } dome.onmouseout=function(){ myFunction=setInterval(moveTop,speed); } </script>
2. Code example : Complete code (runnable)
<!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 http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>循环滚动信息栏</title> <style type="text/css"> body{ margin:0px; padding:0px; } #express li{ height:25px; border-bottom:dashed 1px #999; line-height:20px; font-size:12px; list-style:none; } #dome{ height:305px; overflow:hidden; margin-top:0px; } #book_class{ width:200px; height:310px; border:3px solid #999; margin-left:auto; margin-right:auto; margin-top:70px; border-radius:5px 5px 5px 5px; box-shadow:0px 0px 10px 10px #CECED1; } #express{ margin-left:-30px; margin-right:10px; margin-bottom:0px; margin-top:0px; } #book_class div div ul li a{ text-decoration:none; color:#333333; } #book_class div div ul li a:hover{ text-decoration:underline; } </style> </head> <body> <div id="book_class"> <div id="dome"> <div id="dome1"> <ul id="express"> <li><a href="#">·2010考研英语大纲到货75折...</a></li> <li><a href="#">·权威定本四大名著(人民文...</a></li> <li><a href="#">·口述历史权威唐德刚先生国...</a></li> <li><a href="#">·袁伟民与体坛风云:实话实...</a></li> <li><a href="#">·我们台湾这些年:轰动两岸...</a></li> <li><a href="#">·畅销教辅推荐:精品套书50...</a></li> <li><a href="#">·2010版法律硕士联考大纲75...</a></li> <li><a href="#">·计算机新书畅销书75折抢购</a></li> <li><a href="#">·2009年孩子最喜欢的书</a></li> <li><a href="#">·弗洛伊德作品精选集59折</a></li> <!---------多复制<li>标签就行了------这里就不多写了----------> </div> <div id="dome2"></div> </div> </div> <!----------防止html没有加载完,把javascript代码写在下面----------> <script type="text/javascript"> var dome=document.getElementById("dome"); var dome1=document.getElementById("dome1"); var dome2=document.getElementById("dome2"); var speed=50;//设置向上轮动的速度 dome2.innerHTML=dome1.innerHTML;//复制节点 function moveTop(){ if(dome1.offsetHeight-dome.scrollTop<=0){ dome.scrollTop=0; }else{ dome.scrollTop++; } } var myFunction=setInterval("moveTop()",speed); dome.onmouseover=function(){ clearInterval(myFunction); } dome.onmouseout=function(){ myFunction=setInterval(moveTop,speed); } </script> </body> </html>
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