HTML5 纯CSS3实现div按照顺序出入效果

效果：

源代码：

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			div{
				margin-top: 10px;
				height: 50px;
				background-color: #FF0000;
				opacity: 0.6;
			}
			
			.a{
				animation: aa 2s linear 100ms infinite;
			}
			.b{
				animation: bb 2s linear infinite
			}
			.c{
				animation: cc 2s linear infinite
			}
			.d{
				animation:dd 2s linear infinite
			}
			
			@keyframes aa{
				0%{width: 0;}
				25%{width:200px;}
				50%{width:200px;}
				75%{width:200px;}
				100%{width:200px;}
			}
			@keyframes bb{
				0%{width: 0;}
				25%{width:0px;}
				50%{width:200px;}
				75%{width:200px;}
				100%{width:200px;}
			}
			@keyframes cc{
				0%{width: 0;}
				25%{width:0px;}
				50%{width:0px;}
				75%{width:200px;}
				100%{width:200px;}
			}
			@keyframes dd{
				0%{width: 0;}
				25%{width:0px;}
				50%{width:0px;}
				75%{width:0px;}
				100%{width:200px;}
			}
			
		</style>
	</head>
	<body>
		<div class="a">
			
		</div>
		<div class="b">
			
		</div>
		<div class="c">
			
		</div>
		<div class="d">
			
		</div>
	</body>
</html>

 

posted @ 2020-11-27 18:58  明金同学  阅读(54)  评论(0)    收藏  举报