纯css创建网页加载动画

有时候我们网页由于数据量大或者是网络速度原因导致请求速度慢，会出现一些空白的页面，使得用户体验不是很好，所以网站都会设置一个预加载效果，即加载之前先让他加载一个动画，二后台继续加载未加载出来的内容，当页面加载完数据后动画消失内容显示，这样就是的我们用户体验很好。

接下来给大家分享的是 9 个纯 css 加载动画效果，废话不多说直接上代码。

先看一下效果图：

HTML 代码

<div class="block">
<h1>OuroboroCSS</h1>
<p class="circle"><span class="ouro">
</span></p>
<span class="ouro ouro2">
</span>
<span class="ouro ouro3">
</span>
<p class="round"><span class="ouro">
</span></p>
<span class="ouro ouro2">
</span>
<span class="ouro ouro3">
</span>
<p class="double"><span class="ouro">
</span></p>
<span class="ouro ouro2">
</span>
<span class="ouro ouro3">
</span>
</div>

csss 代码

.ouro {
position: relative;
display: inline-block;
height: 46px;
width: 46px;
margin: 1em;
border-radius: 50%;
background: none repeat scroll 0 0 #DDDDDD;
overflow: hidden;
box-shadow: 0 0 10px rgba(0, 0, 0, .1) inset, 0 0 25px rgba(0, 0, 255, 0.075);
}

.ouro:after {
content: "";
position: absolute;
top: 9px;
left: 9px;
display: block;
height: 28px;
width: 28px;
background: none repeat scroll 0 0 #F2F2F2;
border-radius: 50%;
box-shadow: 0 0 10px rgba(0, 0, 0, .1);
}

.ouro>span {
position: absolute;
height: 100%;
width: 50%;
overflow: hidden;
}

.left {
left: 0
}

.right {
left: 50%
}

.anim {
position: absolute;
left: 100%;
top: 0;
height: 100%;
width: 100%;
border-radius: 999px;
background: none repeat scroll 0 0 #508EC3;
opacity: 0.8;
-webkit-animation: ui-spinner-rotate-left 3s infinite;
animation: ui-spinner-rotate-left 3s infinite;
-webkit-transform-origin: 0 50% 0;
transform-origin: 0 50% 0;
}

.left .anim {
border-bottom-left-radius: 0;
border-top-left-radius: 0;
}

.right .anim {
border-bottom-right-radius: 0;
border-top-right-radius: 0;
left: -100%;
-webkit-transform-origin: 100% 50% 0;
transform-origin: 100% 50% 0;
}
/* v2 */

.ouro2 .anim {
-webkit-animation-delay: 0;
animation-delay: 0;
}

.ouro2 .right .anim {
-webkit-animation-delay: 1.5s;
animation-delay: 1.5s;
}
/* v3 */

.ouro3 .anim {
-webkit-animation-delay: 0s;
-webkit-animation-duration: 3s;
-webkit-animation-timing-function: linear;
animation-delay: 0s;
animation-duration: 3s;
animation-timing-function: linear;
}

.ouro3 .right .anim {
-webkit-animation-name: ui-spinner-rotate-right;
-webkit-animation-delay: 0;
-webkit-animation-delay: 1.5s;
animation-name: ui-spinner-rotate-right;
animation-delay: 0;
animation-delay: 1.5s;
}
/* round variation */

.round .ouro:after {
display: none
}
/* double variation */

.double .ouro:after {
height: 13px;
width: 13px;
left: 7px;
top: 7px;
border: 10px solid #ddd;
background: transparent;
box-shadow: none;
}

@keyframes ui-spinner-rotate-right {
0% {
transform: rotate(0deg)
}
25% {
transform: rotate(180deg)
}
50% {
transform: rotate(180deg)
}
75% {
transform: rotate(360deg)
}
100% {
transform: rotate(360deg)
}
}

@keyframes ui-spinner-rotate-left {
0% {
transform: rotate(0deg)
}
25% {
transform: rotate(0deg)
}
50% {
transform: rotate(180deg)
}
75% {
transform: rotate(180deg)
}
100% {
transform: rotate(360deg)
}
}

@-webkit-keyframes ui-spinner-rotate-right {
0% {
-webkit-transform: rotate(0deg)
}
25% {
-webkit-transform: rotate(180deg)
}
50% {
-webkit-transform: rotate(180deg)
}
75% {
-webkit-transform: rotate(360deg)
}
100% {
-webkit-transform: rotate(360deg)
}
}

@-webkit-keyframes ui-spinner-rotate-left {
0% {
-webkit-transform: rotate(0deg)
}
25% {
-webkit-transform: rotate(0deg)
}
50% {
-webkit-transform: rotate(180deg)
}
75% {
-webkit-transform: rotate(180deg)
}
100% {
-webkit-transform: rotate(360deg)
}
}

html {
height: 100%
}

body {
text-align: center;
background: radial-gradient(circle, #fff 0%, #bbb 85%) no-repeat;
background: -webkit-radial-gradient(circle, #fff 0%, #bbb 85%) no-repeat;
height: 100%;
display: table;
width: 100%
}

.block {
display: table-cell;
vertical-align: middle
}

h1,
a {
margin-top: 1em;
font-family: "Open Sans Light", "Open Sans", "Segoe UI", Helvetica, Arial;
color: #888;
font-weight: lighter;
}

.info {
margin-top: 25px
}

.info a {
font-size: 12px;
color: #999
}

.info br+a {
text-decoration: none
}

以上就是今天码云笔记为大家带来的纯 css 实现的加载动画效果，希望大家喜欢，赶紧收藏一下，对你会有帮助的。

以上关于纯css创建网页加载动画的文章就介绍到这了，更多相关内容请搜索码云笔记以前的文章或继续浏览下面的相关文章，希望大家以后多多支持码云笔记。