Why is the first active button I wrote not highlighted? _html/css_WEB-ITnose

WBOY
Release: 2016-06-24 11:49:12
Original
1152 people have browsed it

<!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" xml:lang="en"><head>    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />    <title>选项卡</title><style>#div1 .active{background:yellow;} #div1 div{width: 200px;height: 200px;background: yellow;border:1px solid #999;display:none;}  </style></head><body><div id="div1">    <input calss="active" type="button"  value="新闻"  />    <input type="button" value="娱乐" />    <input type="button" value="美女" />    <input type="button" value="杂志" />    <div style="display:block;">111111</div>    <div>222222</div>    <div>333333</div>    <div>444444</div></div></body></html>
Copy after login



Why is the first active button I wrote not highlighted? After searching for a long time, I couldn’t find the reason


Reply to the discussion (solution)

Another spelling mistake
active" type="button" value="News" />

Another spelling mistake

Er, I always make such low-level mistakes. If I make a mistake, I can't find it easily, and I don't report an error
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template