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css3 simulate jq click event

高洛峰Original: 2018-05-15 17:00:541608browse

Today is a css3 simulated jq click event, because I found that there is no click event similar to js in css3. So, can I imitate the effect of

jq and make one similar to it? It mainly uses the radio radio button in the input, and then follows it with an a tag to let the radio cover a. Then why not just

put a on top of the radio? Because selector + is a good choice, use the function of radio, a to modify the button style, and then hide the radio. Here you need to use opacity

This is the main principle!

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css3模拟jq点击事件 ##

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
	    <title></title>
	    <style>
	    	*{
	    		margin: 0;
	    		padding: 0;
	    		list-style: none;	
	    		text-decoration: none;    	
	    	}
	    	.fd{
	    		width: 100%;
	    		height: 100px;
	    		margin-top: 200px;
	    		position: fixed;
	    	}
	    	input,a{
	    		width: 33.33%;
	    		height: 100px;
	    		position: absolute;
	    		font-size: 30px;
	    		font-weight: 700;
	    		cursor:pointer;
	    	}
	    	a{
	    		display: block;
	    		color: #000;
	    		text-align: center;
	    		line-height: 100px;
	    		z-index: 10;/*要覆盖嘛，当然需要层级关系*/
	    		border-radius: 20px;
	    		
	    	}
	    	input{
	    		z-index: 100;/*要覆盖嘛，当然需要层级关系*/
	    		opacity:0;
	    	}
	    	input:checked + a{
	    		background: rgba(0,0,0,0.5);
	    	}
	    	#a1,#a1+a{
	    		left: 0%;
	    	}
	    	#a2,#a2+a{
	    		left: 33.33%;
	    	}
	    	#a3,#a3+a{
	    		left: 66.66%;
	    	}
	    </style>
	</head>
	<body>
		<!--单选按钮的时候，name要统一
			原理就是，把input覆盖在a上，然后再把input透明度为0隐藏；
			然后，按钮的样式由a标签来控制。input上，a下，是因为；
			选择器 + 容易选到。
		-->
		<p class="fd">
			<input type="radio" name="单选" id="a1" />
			<a href="#">css</a>
			<input type="radio" name="单选" id="a2"  />
			<a href="#">html</a>
			<input type="radio" name="单选" id="a3" />
			<a href="#">javascript</a>
		</p>
	</body>
</html>

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