css属性选择器应用

代码：


<!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>无标题</title>
    <link type="text/css" rel="stylesheet" href="test.css"/>
    <style type="text/css">
        input[type="text"]:enabled {
            background: rgba(255, 176, 38, 0.5);
        }

        input[type="text"]:disabled {
            background: rgba(35, 23, 23, 0.5);
        }
    </style>
</head>

<body>
<script type="text/javascript">
    function r() {
        var r1 = document.getElementById("r1");
        var r2 = document.getElementById("r2");
        var r3 = document.getElementById("r3");
        if (r1.checked) {
            r3.disabled = "";
        } else {
            r3.disabled = "disabled";
        }
    }
</script>
<input type="radio" name="ra" id="r1" onchange="r()"/>可用
<input type="radio" name="ra" id="r2" onchange="r()" checked/>不可用
<input type="text" id="r3" disabled/>

</body>
</html>


运行结果简要展示：
posted on 2016-03-14 18:53 Newbie_小白阅读(334) 评论(0) 编辑收藏举报