起因是接口超时了，导致项目页面进不去，一直转圈，我于是注意到了这个小东西：
还挺可爱哈，转起来眼睛都快晃瞎了。
于是我出于 无聊 旺盛的学习欲，照着antd的样式和速度改造了一下，做出来的……怎么说呢，好像也差不多吧：
嘎嘎真牛批啊我！
所以把代码贴一下，万一以后要做类似的，直接拿去用，舒服~
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
#preloader{
position:relative;
28px;
height: 28px;
transform: rotate(45deg);
animation: preloader 1.2s infinite linear;
}
#preloader span{
10px;
height: 10px;
position:absolute;
background:#1890ff;
border-radius: 100%;
display:block;
transform-origin: 50% 50%;
opacity: .3;
animation: preloader_span 1.2s infinite linear;
}
#preloader span:nth-child(1){
top: 0;
left: 0;
}
#preloader span:nth-child(2){
top: 0;
right: 0;
animation-delay: 0.4s;
}
#preloader span:nth-child(3){
right: 0;
bottom: 0;
animation-delay: 0.8s;
}
#preloader span:nth-child(4){
bottom: 0;
left: 0;
animation-delay: 1.2s;
}
@keyframes preloader {
from { transform: rotate(0deg); }
to { transform: rotate(360deg); }
}
@keyframes preloader_span {
0% { opacity: .3; }
50% { opacity: 1; }
100% { opacity: .3; }
}
</style>
</head>
<body>
<div id="preloader">
<span></span>
<span></span>
<span></span>
<span></span>
</div>
</body>
</html>
写完我又突发奇想想去看下antd怎么写的，总之万变不离其宗，，css3玩出花就对了，先记录下来吧：
这是html：
<div class="ant-spin ant-spin-lg ant-spin-spinning">
<span class="ant-spin-dot ant-spin-dot-spin">
<i class="ant-spin-dot-item"></i>
<i class="ant-spin-dot-item"></i>
<i class="ant-spin-dot-item"></i>
<i class="ant-spin-dot-item"></i>
</span>
</div>
这是css：
/* stylelint-disable at-rule-empty-line-before,at-rule-name-space-after,at-rule-no-unknown */
/* stylelint-disable no-duplicate-selectors */
/* stylelint-disable */
/* stylelint-disable declaration-bang-space-before,no-duplicate-selectors,string-no-newline */
.ant-spin {
box-sizing: border-box;
margin: 0;
padding: 0;
color: rgba(0, 0, 0, 0.85);
font-size: 14px;
font-variant: tabular-nums;
line-height: 1.5715;
list-style: none;
font-feature-settings: 'tnum', "tnum";
position: absolute;
display: none;
color: #1890ff;
text-align: center;
vertical-align: middle;
opacity: 0;
transition: transform 0.3s cubic-bezier(0.78, 0.14, 0.15, 0.86);
}
.ant-spin-spinning {
position: static;
display: inline-block;
opacity: 1;
}
.ant-spin-nested-loading {
position: relative;
}
.ant-spin-nested-loading > div > .ant-spin {
position: absolute;
top: 0;
left: 0;
z-index: 4;
display: block;
100%;
height: 100%;
max-height: 400px;
}
.ant-spin-nested-loading > div > .ant-spin .ant-spin-dot {
position: absolute;
top: 50%;
left: 50%;
margin: -10px;
}
.ant-spin-nested-loading > div > .ant-spin .ant-spin-text {
position: absolute;
top: 50%;
100%;
padding-top: 5px;
text-shadow: 0 1px 2px #fff;
}
.ant-spin-nested-loading > div > .ant-spin.ant-spin-show-text .ant-spin-dot {
margin-top: -20px;
}
.ant-spin-nested-loading > div > .ant-spin-sm .ant-spin-dot {
margin: -7px;
}
.ant-spin-nested-loading > div > .ant-spin-sm .ant-spin-text {
padding-top: 2px;
}
.ant-spin-nested-loading > div > .ant-spin-sm.ant-spin-show-text .ant-spin-dot {
margin-top: -17px;
}
.ant-spin-nested-loading > div > .ant-spin-lg .ant-spin-dot {
margin: -16px;
}
.ant-spin-nested-loading > div > .ant-spin-lg .ant-spin-text {
padding-top: 11px;
}
.ant-spin-nested-loading > div > .ant-spin-lg.ant-spin-show-text .ant-spin-dot {
margin-top: -26px;
}
.ant-spin-container {
position: relative;
transition: opacity 0.3s;
}
.ant-spin-container::after {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
z-index: 10;
display: none 9;
100%;
height: 100%;
background: #fff;
opacity: 0;
transition: all 0.3s;
content: '';
pointer-events: none;
}
.ant-spin-blur {
clear: both;
overflow: hidden;
opacity: 0.5;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
pointer-events: none;
}
.ant-spin-blur::after {
opacity: 0.4;
pointer-events: auto;
}
.ant-spin-tip {
color: rgba(0, 0, 0, 0.45);
}
.ant-spin-dot {
position: relative;
display: inline-block;
font-size: 20px;
1em;
height: 1em;
}
.ant-spin-dot-item {
position: absolute;
display: block;
9px;
height: 9px;
background-color: #1890ff;
border-radius: 100%;
transform: scale(0.75);
transform-origin: 50% 50%;
opacity: 0.3;
animation: antSpinMove 1s infinite linear alternate;
}
.ant-spin-dot-item:nth-child(1) {
top: 0;
left: 0;
}
.ant-spin-dot-item:nth-child(2) {
top: 0;
right: 0;
animation-delay: 0.4s;
}
.ant-spin-dot-item:nth-child(3) {
right: 0;
bottom: 0;
animation-delay: 0.8s;
}
.ant-spin-dot-item:nth-child(4) {
bottom: 0;
left: 0;
animation-delay: 1.2s;
}
.ant-spin-dot-spin {
transform: rotate(45deg);
animation: antRotate 1.2s infinite linear;
}
.ant-spin-sm .ant-spin-dot {
font-size: 14px;
}
.ant-spin-sm .ant-spin-dot i {
6px;
height: 6px;
}
.ant-spin-lg .ant-spin-dot {
font-size: 32px;
}
.ant-spin-lg .ant-spin-dot i {
14px;
height: 14px;
}
.ant-spin.ant-spin-show-text .ant-spin-text {
display: block;
}
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
/* IE10+ */
.ant-spin-blur {
background: #fff;
opacity: 0.5;
}
}
@keyframes antSpinMove {
to {
opacity: 1;
}
}
@keyframes antRotate {
to {
transform: rotate(405deg);
}
}
.ant-spin-rtl {
direction: rtl;
}
.ant-spin-rtl .ant-spin-dot-spin {
transform: rotate(-45deg);
animation-name: antRotateRtl;
}
@keyframes antRotateRtl {
to {
transform: rotate(-405deg);
}
}
顺便附上一篇博文里贴的另外几种常用加载动画~
https://www.cnblogs.com/lhb25/p/loading-spinners-animated-with-css3.html