纯css3实现音频音阶波浪loading加载动画效果,在主流浏览器上测试通过,包括Chrome、360安全/极速浏览器、Firefox、IE11等。以前用flash来作为loading加载动画效果,但是现在的浏览器出于安全考虑,已经不再默认能自动加载运行flash文件了,因此用css3来实现同样的效果,就能很好的避免这种情况的出现。
运行效果如下:
CSS代码如下:
.loader { position: relative; top: 25px; bottom: 0px; left: 10px; right: 0px; width: 175px; height: 100px;}.loader span { display: block; background: #f1f1f1; width: 7px; height: 10px; border-radius: 14px; margin-right: 5px; float: left; margin-top: 25px;}.loader span:last-child { margin-right: 0px;}.loader span:nth-child(1) { animation: load 2.5s 1.4s infinite linear;}.loader span:nth-child(2) { animation: load 2.5s 1.2s infinite linear;}.loader span:nth-child(3) { animation: load 2.5s 1s infinite linear;}.loader span:nth-child(4) { animation: load 2.5s 0.8s infinite linear;}.loader span:nth-child(5) { animation: load 2.5s 0.6s infinite linear;}.loader span:nth-child(6) { animation: load 2.5s 0.4s infinite linear;}.loader span:nth-child(7) { animation: load 2.5s 0.2s infinite linear;}.loader span:nth-child(8) { animation: load 2.5s 0s infinite linear;}.loader span:nth-child(9) { animation: load 2.5s 0.2s infinite linear;}.loader span:nth-child(10) { animation: load 2.5s 0.4s infinite linear;}.loader span:nth-child(11) { animation: load 2.5s 0.6s infinite linear;}.loader span:nth-child(12) { animation: load 2.5s 0.8s infinite linear;}.loader span:nth-child(13) { animation: load 2.5s 1s infinite linear;}.loader span:nth-child(14) { animation: load 2.5s 1.2s infinite linear;}.loader span:nth-child(15) { animation: load 2.5s 1.4s infinite linear;}@keyframes load { 0% { background: #ccc; margin-top: 25%; height: 10%; } 50% { background: #e1e1e1; height: 100%; margin-top: 0%; } 100% { background: #ccc; height: 10%; margin-top: 25%; }}
css代码解释:
.loader {} 定义动画的大小及相对位置,.loader span {} 定义动画音阶背景颜色;@keyframes load {} 这里面定义音阶的颜色,修改background此属性值即可。
html代码代码如下:
<div id="div_loading" style ="margin:5px 5px 5px 5px;width:200px;height:150px;background-color:#ccc;"> <div class="loader"> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> <span></span> </div> </div>
html代码解释:
id="div_loading" 这个div是加载动画的位置,id名称可以随意更改;而class="loader" 这个div是展示动画的容器,class="loader" 这个类名不能更改。
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