利用css3做一个loading快速点圈滚动加载效果（附代码）
html如何利用css3做一个loading快速点圈滚动加载效果，下面编程教程网小编给大家简单介绍一下实现代码！
html代码：
<div class="loading"></div>
css动态效果代码：
body{
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
background: #69a7f7;
}
.loading {
font-size: 90px;
text-indent: -9999em;
overflow: hidden;
width: 1em;
height: 1em;
border-radius: 50%;
margin: 0.8em auto;
position: relative;
-webkit-animation: dynamic 1.7s infinite ease;
animation: dynamic 1.7s infinite ease;
}
@-webkit-keyframes dynamic {
0% {
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
box-shadow: -0.11em -0.83em 0 -0.4em #ffffff, -0.11em -0.83em 0 -0.42em #ffffff, -0.11em -0.83em 0 -0.44em #ffffff, -0.11em -0.83em 0 -0.46em #ffffff, -0.11em -0.83em 0 -0.477em #ffffff;
}
5%,
95% {
box-shadow: -0.11em -0.83em 0 -0.4em #ffffff, -0.11em -0.83em 0 -0.42em #ffffff, -0.11em -0.83em 0 -0.44em #ffffff, -0.11em -0.83em 0 -0.46em #ffffff, -0.11em -0.83em 0 -0.477em #ffffff;
}
30% {
box-shadow: -0.11em -0.83em 0 -0.4em #ffffff, -0.51em -0.66em 0 -0.42em #ffffff, -0.75em -0.36em 0 -0.44em #ffffff, -0.83em -0.03em 0 -0.46em #ffffff, -0.81em 0.21em 0 -0.477em #ffffff;
}
55% {
box-shadow: -0.11em -0.83em 0 -0.4em #ffffff, -0.29em -0.78em 0 -0.42em #ffffff, -0.43em -0.72em 0 -0.44em #ffffff, -0.52em -0.65em 0 -0.46em #ffffff, -0.57em -0.61em 0 -0.477em #ffffff;
}
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
box-shadow: -0.11em -0.83em 0 -0.4em #ffffff, -0.11em -0.83em 0 -0.42em #ffffff, -0.11em -0.83em 0 -0.44em #ffffff, -0.11em -0.83em 0 -0.46em #ffffff, -0.11em -0.83em 0 -0.477em #ffffff;
}
}
@keyframes dynamic {
0% {
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
box-shadow: -0.11em -0.83em 0 -0.4em #ffffff, -0.11em -0.83em 0 -0.42em #ffffff, -0.11em -0.83em 0 -0.44em #ffffff, -0.11em -0.83em 0 -0.46em #ffffff, -0.11em -0.83em 0 -0.477em #ffffff;
}
5%,
95% {
box-shadow: -0.11em -0.83em 0 -0.4em #ffffff, -0.11em -0.83em 0 -0.42em #ffffff, -0.11em -0.83em 0 -0.44em #ffffff, -0.11em -0.83em 0 -0.46em #ffffff, -0.11em -0.83em 0 -0.477em #ffffff;
}
30% {
box-shadow: -0.11em -0.83em 0 -0.4em #ffffff, -0.51em -0.66em 0 -0.42em #ffffff, -0.75em -0.36em 0 -0.44em #ffffff, -0.83em -0.03em 0 -0.46em #ffffff, -0.81em 0.21em 0 -0.477em #ffffff;
}
55% {
box-shadow: -0.11em -0.83em 0 -0.4em #ffffff, -0.29em -0.78em 0 -0.42em #ffffff, -0.43em -0.72em 0 -0.44em #ffffff, -0.52em -0.65em 0 -0.46em #ffffff, -0.57em -0.61em 0 -0.477em #ffffff;
}
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
box-shadow: -0.11em -0.83em 0 -0.4em #ffffff, -0.11em -0.83em 0 -0.42em #ffffff, -0.11em -0.83em 0 -0.44em #ffffff, -0.11em -0.83em 0 -0.46em #ffffff, -0.11em -0.83em 0 -0.477em #ffffff;
}
}