IE7 CSS - label background-color doesn't change on radio button checked

Question

I have a problem in highlight a label when an input radio is checked on IE7.

the code is very simple and you can take a look here: JsFiddle

I need to let it work on IE7 without using Javascript.

HTML:

<ul>
    <li>
        <input id="yes" type="radio" name="name" title="yes" />
        <label for="yes">Yes</label></li>
    <li>
        <input id="no" type="radio" name="name" title="no" />
        <label for="no">No</label>
    </li>
</ul>​

CSS:

input[type="radio"]{
    position: absolute;
    left: -9999px;
}

label{
 background-color: yellow;
 border: 1px solid #777;
 cursor: pointer;
 float: left;
 margin-right: 10px;
 padding: 10px;
 width: 80px;
 height: 30px;   
}

input[type="radio"]:checked + label {
 background-color: green;
 color: #FFF;    
}

Answer 1

IE 7不支持“：checked”

Answer 2

IE 7 doesn't really do your CSS3 selector, you will want to use: http://selectivizr.com/ to provide the CSS3 support to IE 7.

Without JS this is impossible to achieve.

You would need to add:

<script type="text/javascript" src="http://code.jquery.com/jquery-1.7.1.min.js"></script>
<!--[if (gte IE 6)&(lte IE 8)]>
  <script type="text/javascript" src="selectivizr.js"></script>
  <noscript><link rel="stylesheet" href="[fallback css]" /></noscript>
<![endif]-->

To your site to enable IE7 :selector support.