CSS 悬停+背景图片 [英] CSS Hover+Background Image
问题描述
我正在使用 HTML/CSS 创建一个特殊的 UI 控件来模仿 Windows 7 控制面板按钮.到目前为止，我已经完成了布局，现在我想在其中添加一些化妆品.
如此处所示，当您将鼠标悬停在按钮上时会出现一个渐变.
，其他浏览器不喜欢".我不知道为什么它不适用于其他浏览器的确切原因 - 我想原因要么是实现细节，要么隐藏在 W3 规范中.
这适用于所有浏览器":
现场演示
(我使用 <base> 标签来使路径工作)
这是您的确切代码，包含在典型的样板文件中，并添加了 <base> 标记.
I'm creating a special UI control using HTML/CSS to mimic the Windows 7 Control Panel buttons. So far, I've got the layout right and now I'd like to add some cosmetics to it.
As seen here, there is a gradient that appears when you hover over the button with your mouse.
http://m.cncfps.com/zack/files/this-control.png
Now, you can see here that I've got the layout done. I'd like to add a :hover effect to the whole div item with a background image.
Currently, here is what I have for the CSS- yet it doesn't work. No image shows up in IE8, or FireFox
EDIT: It works in Chrome, but not in FireFox or IE.
#cp .cp-item:hover
{
background:url(images/hoverbg.png) repeat-x;
}
It does however work with a background-color rather than an image.
- There's nothing (relevant) wrong with your CSS.
- The path to your image is correct.
It already works in Chrome.
Chrome seems to be more intelligent (or lenient) than other browsers. If I inspect the page, it's inserting stuff:
It doesn't work in other browsers because you don't have a proper page structure (no doctype, no <html> tag, no <body> tag, etc) - your page doesn't validate, and the other browsers do not "like it". I don't know the exact reason why it doesn't work with the other browsers - I imagine the reason is either an implementation detail, or buried within the W3 spec.
This works in "all browsers":
Live Demo
(I'm using the <base> tag to make the paths work)
It's your exact code, wrapped in typical boilerplate, with the addition of the <base> tag.
<!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>
<base href="http://toro.azwestern.edu/~zbl/" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<link rel="stylesheet" href="style.css" type="text/css" />
<div id="cp">
<div class="cp-item"><span>
<div class="cp-item-icon"><img src="images/syssec.png" title="System and Security" /></div>
<div class="cp-item-content">
<h4>System and Security</h4>
<ul>
<li><a href="#">item</a></li>
<li><a href="#">item</a></li>
<li><a href="#">item</a></li>
<li><a href="#">item</a></li>
<li><a href="#">item</a></li>
<li><a href="#">item</a></li>
</ul>
</div>
</span></div>
</div>
</body>
</html>
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