好看的css预加载旋转动画 与 流光字体

今天刚好在做这个功能，就实现一个 预加载的动画效果，随手记录

一、预加载旋转动画

Html

<view class="concentric_round"></view>

css

body {
	background-color: #e9967a;
}
.concentric_round {
	width: 200rpx;
	height: 200rpx;
	position: relative;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -100%);
}
.concentric_round::after,
.concentric_round::before {
	content: '';
	display: block;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	background-color: #fff;
	opacity: 0.4;
	border-radius: 100%;
}

.concentric_round::before {
	width: 50%;
	height: 50%;
	animation: beform_round 0.6s ease-in-out infinite alternate;
}

.concentric_round::after {
	width: 100%;
	height: 100%;
	animation: after_round 0.6s ease-in-out infinite alternate;
}
/* 外圆 */
@-webkit-keyframes after_round {
	0% {
		transform: translate3d(-50%, -50%, 0) scale(1.3);
	}
	100% {
		transform: translate3d(-50%, -50%, 0) scale(1);
	}
}
@keyframes after_round {
	0% {
		transform: translate3d(-50%, -50%, 0) scale(1.3);
	}
	100% {
		transform: translate3d(-50%, -50%, 0) scale(1);
	}
}
/* 内圆 */
@-webkit-keyframes beform_round {
	0% {
		transform: translate3d(-50%, -50%, 0) scale(0.7);
	}
	100% {
		transform: translate3d(-50%, -50%, 0) scale(1);
	}
}
@keyframes beform_round {
	0% {
		transform: translate3d(-50%, -50%, 0) scale(0.7);
	}
	100% {
		transform: translate3d(-50%, -50%, 0) scale(1);
	}
}

二、流光字体动画

html

<view class="preload">F-REWARD</view>

css 

.preload {
	width: 100%;
	font-weight: bold;
	font-family: 'Arial', 'Microsoft YaHei', '黑体', '宋体', sans-serif;
	font-size: 2.5rem;
	text-align: center;
	background-image: -webkit-linear-gradient(left, black, transparent 25%, black 50%, transparent 75%, black);
	-webkit-text-fill-color: transparent;
	-webkit-background-clip: text;
	-webkit-background-size: 200% 100%;
	-webkit-animation: masked-animation 2s infinite linear;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -100%);
}
@-webkit-keyframes masked-animation {
	0% {
		background-position: 0 0;
	}
	100% {
		background-position: -100% 0;
	}
}