用CSS怎样做三角形叠加放大的效果？-群英

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相信有一点CSS基础的朋友应该都可以轻松实现一个css三角形，那么如果我们想要更酷炫的三角形效果要怎样做呢？其实我们可以用CSS3来做一个三角形叠加放大的特效，实现效果及代码如下，感兴趣的朋友可以参考。

一、CSS3三角形不断放大特效

11.1 图片预览

11.2 index.html代码

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8">
		<title>CSS3三角形不断放大特效</title>
		<link rel="stylesheet" href="css/style.css">
	</head>
	<body>
		<div class="wrapper">
			<svg class="triangle-canvas" viewBox="0 0 1000 1000" xmlns="http://www.w3.org/2000/svg">
				<polygon class="triangle triangle-1" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-2" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-3" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-4" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-5" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-6" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-7" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-8" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-9" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-10" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-11" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-12" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-13" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-14" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-15" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-16" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-17" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-18" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-19" points="500,200 759,650 241,650" />
				<polygon class="triangle triangle-20" points="500,200 759,650 241,650" />
			</svg>
		</div>
	</body>
</html>

11.3 style.css代码

html {
	height: 100%;
}

body {
	padding: 0;
	margin: 0;
	height: 100%;
	background: #642B73;
	/* fallback for old browsers */
	/* Chrome 10-25, Safari 5.1-6 */
	background: linear-gradient(to left, #C6426E, #642B73);
	/* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
}

.wrapper {
	overflow: hidden;
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}

.triangle-canvas {
	position: absolute;
	left: 50%;
	top: 50%;
	width: 100%;
	height: 100%;
	-webkit-transform: translate(-50%, -50%);
	transform: translate(-50%, -50%);
}

.triangle {
	fill: none;
	stroke: #fff;
	stroke-width: 15;
	-webkit-transform-origin: center center;
	transform-origin: center center;
	-webkit-animation: triangle-animation 10s linear infinite;
	animation: triangle-animation 10s linear infinite;
}

.triangle-1 {
	-webkit-animation-delay: 0s;
	animation-delay: 0s;
}

.triangle-2 {
	-webkit-animation-delay: -0.5s;
	animation-delay: -0.5s;
}

.triangle-3 {
	-webkit-animation-delay: -1s;
	animation-delay: -1s;
}

.triangle-4 {
	-webkit-animation-delay: -1.5s;
	animation-delay: -1.5s;
}

.triangle-5 {
	-webkit-animation-delay: -2s;
	animation-delay: -2s;
}

.triangle-6 {
	-webkit-animation-delay: -2.5s;
	animation-delay: -2.5s;
}

.triangle-7 {
	-webkit-animation-delay: -3s;
	animation-delay: -3s;
}

.triangle-8 {
	-webkit-animation-delay: -3.5s;
	animation-delay: -3.5s;
}

.triangle-9 {
	-webkit-animation-delay: -4s;
	animation-delay: -4s;
}

.triangle-10 {
	-webkit-animation-delay: -4.5s;
	animation-delay: -4.5s;
}

.triangle-11 {
	-webkit-animation-delay: -5s;
	animation-delay: -5s;
}

.triangle-12 {
	-webkit-animation-delay: -5.5s;
	animation-delay: -5.5s;
}

.triangle-13 {
	-webkit-animation-delay: -6s;
	animation-delay: -6s;
}

.triangle-14 {
	-webkit-animation-delay: -6.5s;
	animation-delay: -6.5s;
}

.triangle-15 {
	-webkit-animation-delay: -7s;
	animation-delay: -7s;
}

.triangle-16 {
	-webkit-animation-delay: -7.5s;
	animation-delay: -7.5s;
}

.triangle-17 {
	-webkit-animation-delay: -8s;
	animation-delay: -8s;
}

.triangle-18 {
	-webkit-animation-delay: -8.5s;
	animation-delay: -8.5s;
}

.triangle-19 {
	-webkit-animation-delay: -9s;
	animation-delay: -9s;
}

.triangle-20 {
	-webkit-animation-delay: -9.5s;
	animation-delay: -9.5s;
}

@-webkit-keyframes triangle-animation {
	0% {
		-webkit-transform: scale(0) rotate(0deg);
		transform: scale(0) rotate(0deg);
		opacity: 1;
	}

	100% {
		-webkit-transform: scale(3) rotate(45deg);
		transform: scale(3) rotate(45deg);
		opacity: 0;
	}
}

@keyframes triangle-animation {
	0% {
		-webkit-transform: scale(0) rotate(0deg);
		transform: scale(0) rotate(0deg);
		opacity: 1;
	}

	100% {
		-webkit-transform: scale(3) rotate(45deg);
		transform: scale(3) rotate(45deg);
		opacity: 0;
	}
}

以上就是用CSS3实现三角形叠加放大的特效的介绍了，上述示例具有一定的借鉴价值，希望对大家学习CSS3有帮助，想要了解更多大家可以继续浏览群英网络其他相关的文章。

文本转载自脚本之家