利用CSS3打造十种Loading效果

代码如下：

html

<div class="loading">
 <span></span>
 <span></span>
 <span></span>
 <span></span>
 <span></span>
</div>

css

.loading{
 width: 80px;
 height: 40px;
 margin: 0 auto;
 margin-top:100px;
 }
 .loading span{
 display: inline-block;
 width: 8px;
 height: 100%;
 border-radius: 4px;
 background: lightgreen;
 -webkit-animation: load 1s ease infinite;
 }
 @-webkit-keyframes load{
 0%,100%{
 height: 40px;
 background: lightgreen;
 }
 50%{
 height: 70px;
 margin: -15px 0;
 background: lightblue;
 }
 }
 .loading span:nth-child(2){
 -webkit-animation-delay:0.2s;
 }
 .loading span:nth-child(3){
 -webkit-animation-delay:0.4s;
 }
 .loading span:nth-child(4){
 -webkit-animation-delay:0.6s;
 }
 .loading span:nth-child(5){
 -webkit-animation-delay:0.8s;
 }

第2种效果

<div class="loading">
 <span></span>
</div>

.loading{
 width: 150px;
 height: 4px;
 border-radius: 2px;
 margin: 0 auto;
 margin-top:100px;
 position: relative;
 background: lightgreen;
 -webkit-animation: changeBgColor 1.04s ease-in infinite alternate;
 }
 .loading span{
 display: inline-block;
 width: 16px;
 height: 16px;
 border-radius: 50%;
 background: lightgreen;
 position: absolute;
 margin-top: -7px;
 margin-left:-8px;
 -webkit-animation: changePosition 1.04s ease-in infinite alternate;
 }
 @-webkit-keyframes changeBgColor{
 0%{
 background: lightgreen;
 }
 100%{
 background: lightblue;
 }
 }
 @-webkit-keyframes changePosition{
 0%{
 background: lightgreen;
 }
 100%{
 margin-left: 142px;
 background: lightblue;
 }
 }

第3-5种效果：

.0

<div class="loading">
 <span></span>
 <span></span>
 <span></span>
 <span></span>
 <span></span>
</div>

3

.loading{
 width: 150px;
 height: 15px;
 margin: 0 auto;
 margin-top:100px;
 }
 .loading span{
 display: inline-block;
 width: 15px;
 height: 100%;
 margin-right: 5px;
 border-radius: 50%;
 background: lightgreen;
 -webkit-animation: load 1.04s ease infinite;
 }
 .loading span:last-child{
 margin-right: 0px; 
 }
 @-webkit-keyframes load{
 0%{
 opacity: 1;
 }
 100%{
 opacity: 0;
 }
 }
 .loading span:nth-child(1){
 -webkit-animation-delay:0.13s;
 }
 .loading span:nth-child(2){
 -webkit-animation-delay:0.26s;
 }
 .loading span:nth-child(3){
 -webkit-animation-delay:0.39s;
 }
 .loading span:nth-child(4){
 -webkit-animation-delay:0.52s;
 }
 .loading span:nth-child(5){
 -webkit-animation-delay:0.65s;
 }

4

.loading{
 width: 150px;
 height: 15px;
 margin: 0 auto;
 margin-top:100px;
 }
 .loading span{
 display: inline-block;
 width: 15px;
 height: 100%;
 margin-right: 5px;
 border-radius: 50%;
 background: lightgreen;
 -webkit-animation: load 1.04s ease infinite;
 }
 .loading span:last-child{
 margin-right: 0px; 
 }
 @-webkit-keyframes load{
 0%{
 opacity: 1;
 -webkit-transform: scale(1.3);
 }
 100%{
 opacity: 0.2;
 -webkit-transform: scale(.3);
 }
 }
 .loading span:nth-child(1){
 -webkit-animation-delay:0.13s;
 }
 .loading span:nth-child(2){
 -webkit-animation-delay:0.26s;
 }
 .loading span:nth-child(3){
 -webkit-animation-delay:0.39s;
 }
 .loading span:nth-child(4){
 -webkit-animation-delay:0.52s;
 }
 .loading span:nth-child(5){
 -webkit-animation-delay:0.65s;
 }

5

.loading{
 width: 150px;
 height: 15px;
 margin: 0 auto;
 position: relative;
 margin-top:100px;
 }
 .loading span{
 position: absolute;
 width: 15px;
 height: 100%;
 border-radius: 50%;
 background: lightgreen;
 -webkit-animation: load 1.04s ease-in infinite alternate;
 }
 @-webkit-keyframes load{
 0%{
 opacity: 1;
 -webkit-transform: translate(0px);
 }
 100%{
 opacity: 0.2;
 -webkit-transform: translate(150px);
 }
 }
 .loading span:nth-child(1){
 -webkit-animation-delay:0.13s;
 }
 .loading span:nth-child(2){
 -webkit-animation-delay:0.26s;
 }
 .loading span:nth-child(3){
 -webkit-animation-delay:0.39s;
 }
 .loading span:nth-child(4){
 -webkit-animation-delay:0.52s;
 }
 .loading span:nth-child(5){
 -webkit-animation-delay:0.65s;
 }

第6-8种效果：

<div class="loading">
 <span></span>
 <span></span>
 <span></span>
 <span></span>
 <span></span>
</div>

.loading{
 width: 150px;
 height: 15px;
 margin: 0 auto;
 margin-top:100px;
 text-align: center;
 }
 .loading span{
 display: inline-block;
 width: 15px;
 height: 100%;
 margin-right: 5px;
 background: lightgreen;
 -webkit-animation: load 1.04s ease infinite;
 }
 .loading span:last-child{
 margin-right: 0px; 
 }
 @-webkit-keyframes load{
 0%{
 opacity: 1;
 }
 100%{
 opacity: 0;
 }
 }
 .loading span:nth-child(1){
 -webkit-animation-delay:0.13s;
 }
 .loading span:nth-child(2){
 -webkit-animation-delay:0.26s;
 }
 .loading span:nth-child(3){
 -webkit-animation-delay:0.39s;
 }
 .loading span:nth-child(4){
 -webkit-animation-delay:0.52s;
 }
 .loading span:nth-child(5){
 -webkit-animation-delay:0.65s;
 }

.loading{
 width: 150px;
 height: 15px;
 margin: 0 auto;
 margin-top:100px;
 }
 .loading span{
 display: inline-block;
 width: 15px;
 height: 100%;
 margin-right: 5px;
 background: lightgreen;
 -webkit-transform-origin: right bottom;
 -webkit-animation: load 1s ease infinite;
 }
 .loading span:last-child{
 margin-right: 0px; 
 }
 @-webkit-keyframes load{
 0%{
 opacity: 1;
 }
 100%{
 opacity: 0;
 -webkit-transform: rotate(90deg);
 }
 }
 .loading span:nth-child(1){
 -webkit-animation-delay:0.13s;
 }
 .loading span:nth-child(2){
 -webkit-animation-delay:0.26s;
 }
 .loading span:nth-child(3){
 -webkit-animation-delay:0.39s;
 }
 .loading span:nth-child(4){
 -webkit-animation-delay:0.52s;
 }
 .loading span:nth-child(5){
 -webkit-animation-delay:0.65s;
 }

.loading{
 width: 150px;
 height: 15px;
 margin: 0 auto;
 margin-top:100px;
 }
 .loading span{
 display: inline-block;
 width: 15px;
 height: 100%;
 margin-right: 5px;
 background: lightgreen;
 -webkit-transform-origin: right bottom;
 -webkit-animation: load 1s ease infinite;
 }
 .loading span:last-child{
 margin-right: 0px; 
 }
 @-webkit-keyframes load{
 0%{
 opacity: 1;
 -webkit-transform: scale(1);
 }
 100%{
 opacity: 0;
 -webkit-transform: rotate(90deg) scale(.3);
 }
 }
 .loading span:nth-child(1){
 -webkit-animation-delay:0.13s;
 }
 .loading span:nth-child(2){
 -webkit-animation-delay:0.26s;
 }
 .loading span:nth-child(3){
 -webkit-animation-delay:0.39s;
 }
 .loading span:nth-child(4){
 -webkit-animation-delay:0.52s;
 }
 .loading span:nth-child(5){
 -webkit-animation-delay:0.65s;
 }

第9-10种效果：

<div class="loadEffect">
 <span></span>
 <span></span>
 <span></span>
 <span></span>
 <span></span>
 <span></span>
 <span></span>
 <span></span>
</div>

.loadEffect{
 width: 100px;
 height: 100px;
 position: relative;
 margin: 0 auto;
 margin-top:100px;
 }
 .loadEffect span{
 display: inline-block;
 width: 16px;
 height: 16px;
 border-radius: 50%;
 background: lightgreen;
 position: absolute;
 -webkit-animation: load 1.04s ease infinite;
 }
 @-webkit-keyframes load{
 0%{
 opacity: 1;
 }
 100%{
 opacity: 0.2;
 }
 }
 .loadEffect span:nth-child(1){
 left: 0;
 top: 50%;
 margin-top:-8px;
 -webkit-animation-delay:0.13s;
 }
 .loadEffect span:nth-child(2){
 left: 14px;
 top: 14px;
 -webkit-animation-delay:0.26s;
 }
 .loadEffect span:nth-child(3){
 left: 50%;
 top: 0;
 margin-left: -8px;
 -webkit-animation-delay:0.39s;
 }
 .loadEffect span:nth-child(4){
 top: 14px;
 right:14px;
 -webkit-animation-delay:0.52s;
 }
 .loadEffect span:nth-child(5){
 right: 0;
 top: 50%;
 margin-top:-8px;
 -webkit-animation-delay:0.65s;
 }
 .loadEffect span:nth-child(6){
 right: 14px;
 bottom:14px;
 -webkit-animation-delay:0.78s;
 }
 .loadEffect span:nth-child(7){
 bottom: 0;
 left: 50%;
 margin-left: -8px;
 -webkit-animation-delay:0.91s;
 }
 .loadEffect span:nth-child(8){
 bottom: 14px;
 left: 14px;
 -webkit-animation-delay:1.04s;
 }

.loadEffect{
 width: 100px;
 height: 100px;
 position: relative;
 margin: 0 auto;
 margin-top:100px;
 }
 .loadEffect span{
 display: inline-block;
 width: 20px;
 height: 20px;
 border-radius: 50%;
 background: lightgreen;
 position: absolute;
 -webkit-animation: load 1.04s ease infinite;
 }
 @-webkit-keyframes load{
 0%{
 -webkit-transform: scale(1.2);
 opacity: 1;
 }
 100%{
 -webkit-transform: scale(.3);
 opacity: 0.5;
 }
 }
 .loadEffect span:nth-child(1){
 left: 0;
 top: 50%;
 margin-top:-10px;
 -webkit-animation-delay:0.13s;
 }
 .loadEffect span:nth-child(2){
 left: 14px;
 top: 14px;
 -webkit-animation-delay:0.26s;
 }
 .loadEffect span:nth-child(3){
 left: 50%;
 top: 0;
 margin-left: -10px;
 -webkit-animation-delay:0.39s;
 }
 .loadEffect span:nth-child(4){
 top: 14px;
 right:14px;
 -webkit-animation-delay:0.52s;
 }
 .loadEffect span:nth-child(5){
 right: 0;
 top: 50%;
 margin-top:-10px;
 -webkit-animation-delay:0.65s;
 }
 .loadEffect span:nth-child(6){
 right: 14px;
 bottom:14px;
 -webkit-animation-delay:0.78s;
 }
 .loadEffect span:nth-child(7){
 bottom: 0;
 left: 50%;
 margin-left: -10px;
 -webkit-animation-delay:0.91s;
 }
 .loadEffect span:nth-child(8){
 bottom: 14px;
 left: 14px;
 -webkit-animation-delay:1.04s;
 }

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