原文:

昨晚用CSS3实现了几种常见的Loading效果，虽然很简单，但还是分享一下，顺便也当是做做笔记……

第1种效果：

代码如下：

.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：

代码如下：

.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：

代码如下：

第3-5种效果的css样式分别为：

.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;        }

.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;        }

.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：

代码如下：

第6-8种效果的css样式分别为：

.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：

代码如下：

CSS样式分别为：

.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;        }

 

PS：CSS样式代码其实很多重复，主要就是动画不一样，但为了方便以后直接拿来用，就先不整理了。