CSS3实现10种Loading效果方法

第1种效果：

代码如下：

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

.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：

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

.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：

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

第3-5种效果的css样式分别为：

.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：

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

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;   
        }

第9-10种效果：

代码如下：

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

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;   
            rightright:14px;   
            -webkit-animation-delay:0.52s;   
        }   
        .loadEffect span:nth-child(5){   
            rightright: 0;   
            top: 50%;   
            margin-top:-8px;   
            -webkit-animation-delay:0.65s;   
        }   
        .loadEffect span:nth-child(6){   
            rightright: 14px;   
            bottombottom:14px;   
            -webkit-animation-delay:0.78s;   
        }   
        .loadEffect span:nth-child(7){   
            bottombottom: 0;   
            left: 50%;   
            margin-left: -8px;   
            -webkit-animation-delay:0.91s;   
        }   
        .loadEffect span:nth-child(8){   
            bottombottom: 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。

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