圆形进度条和浮光掠影

圆形进度条:

思路: 在网上看到的思路,设计两个半圆分别放在两个盒子里面,初始时,在透明处,然后旋转,控制两边旋转时的时间就以了

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
body {
position: relative;
}
.content {
/* 居中 */
position: absolute;
top: 200px;
left: 600px;

width: 200px;
height: 200px;
/* background-color: blue; */
}
.content .box1 {
/* 为了让两个圆环的盒子在一行 */
position: absolute;
width: 100px;
height: 200px;
/* background-color: black; */
/* 旋转式溢出隐藏 */
overflow: hidden;
}
.content .box1 .left {
height: 160px;
width: 160px;
border:15px solid transparent;
border-radius: 50%;
border-bottom: 15px solid red;
border-left: 15px solid red;
transform: rotate(-135deg);
/* 把隐藏部分先显示 */
position: absolute;
top: 5px;
left: 5px;
/* animation: name duration timing-function delay iteration-count direction fill-mode; */

animation: left_circle 8s linear infinite;
}

@keyframes left_circle {
0%,50% {
/* 让其隐藏起来 ,0-50% */
transform: rotate(-135deg);
}
100% {
/* 从隐藏部分赚回来 */
transform: rotate(45deg);
}
}
.content .box2 {
/* 为了让两个圆环的盒子在一行 */
position: absolute;
left: 100px;
width: 100px;
height: 200px;
/* background-color: pink; */
/* 旋转式溢出隐藏 */
overflow: hidden;
}

.content .box2 .right {
height: 160px;
width: 160px;
border:15px solid transparent;
border-radius: 50%;
border-top: 15px solid red;
border-right: 15px solid red;
transform: rotate(-135deg);
/* 把隐藏部分先显示 */
position: absolute;
top: 5px;
right: 5px;
/* animation: name duration timing-function delay iteration-count direction fill-mode; */

animation: rifht_circle 8s linear infinite;
}
@keyframes rifht_circle {
0% {
/* 让其隐藏起来 */
transform: rotate(-135deg);
}
50%,100% {
/* 从隐藏部分赚回来 */
transform: rotate(45deg);
}
}

</style>
</head>
<body>
<!-- 借鉴思路: 两个半圆环 -->
<div class="content">
<!-- 里面放两个盒子,盒子里面放圆环 -->
<div class="box1">
<!-- 放左边的半圆 -->
<div class="left"></div>
</div>
<div class="box2">
<!-- 放右边的半圆 -->
<div class="right"></div>
</div>
</div>
</body>
</html>