Html
    Css
    Js

    
                        
* {
	margin:0;
	padding:0;
}
a {
	text-decoration:none;
}
body {
	font-family:'microsoft yahei';
}
.w {
	width:1200px;
	margin:0 auto;
}
.input {
	width:100px;
	line-height:40px;
	text-align:center;
	background:#00a1ea;
	color:#fff;
	border:none;
	cursor:pointer;
}
.dis {
	width:100px;
	line-height:40px;
	text-align:center;
	background:#ccc;
	color:#000;
	border:none;
	cursor:not-allowed;
}

                        
↑上面代码改变,会自动显示代码结果 jQuery调用版本:1.11.3
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