I haven’t touched the web side for a while. I recently made a function. I need to make a DIV that scrolls with the scroll bar. Mark it:
Source code:
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 5 <title>div随滚动条滚动而滚动</title> 6 <style type="text/css"> 7 #divContainer{width:1200px;height:1800px;border:1px solid #0000FF;margin:0px auto;} 8 /* 9 设置div固定显示在屏幕位置时，定位计算公式：10 11 left:50% + margin-left:±（页面内容部分宽度+div宽度+间隔像素）12 */13 #divMain{width:500px;height:400px;margin:0px auto;position:fixed;top:50%;left:50%;border:1px solid #ff0000;text-align:center;line-height:400px;margin:-200px 0px 0px -350px;}14 </style>15 </head>16 17 <body>18 <div id="divContainer">19 <div id="divMain">20 <span>div随滚动条滚动而滚动</span>21 </div>22 </div>23 </body>24 </html>
Preview effect:
This function is implemented using CSS, and the same function can also be achieved using jQuery.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
