动画如下图所示:

- 为了快速的看到动画效果,所以时间调短了,动画变快了。源代码如下:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.banner_feature{
position:relative;
margin-bottom:50px;
height:40px;
line-height:40px;
letter-spacing:6px;
overflow:hidden
}
.banner_feature li{
position:absolute;
font-size:26px;
word-break:break-all
}
.banner_feature li:nth-child(1){
top:0;left:0;
-webkit-animation:imgToggle 8s -6s linear infinite;
-moz-animation:imgToggle 8s -6s linear infinite;
animation:imgToggle 8s -6s linear infinite
}
.banner_feature li:nth-child(2){
top:0;left:0;
-webkit-animation:imgToggle 8s -4s linear infinite;
-moz-animation:imgToggle 8s -4s linear infinite;
animation:imgToggle 8s -4s linear infinite
}
.banner_feature li:nth-child(3){
top:0;left:0;
-webkit-animation:imgToggle 8s -2s linear infinite;
-moz-animation:imgToggle 8s -2s linear infinite;
animation:imgToggle 8s -2s linear infinite
}
.banner_feature li:nth-child(4){
top:0;left:0;
-webkit-animation:imgToggle 8s 0s linear infinite;
-moz-animation:imgToggle 8s 0s linear infinite;
animation:imgToggle 8s 0s linear infinite
}
@-webkit-keyframes imgToggle{0%,75%,100%{width:0;opacity:0}76%,99%{opacity:1}85%,95%{width:100%;opacity:1}}
@-moz-keyframes imgToggle{0%,75%,100%{width:0;opacity:0}76%,99%{opacity:1}85%,95%{width:100%;opacity:1}}
@keyframes imgToggle{0%,75%,100%{width:0;opacity:0}76%,99%{opacity:1}85%,95%{width:100%;opacity:1}}
</style>
</head>
<body>
<ul class="banner_feature">
<li>一处代码,多处运行</li>
<li>支持微信小程序双向转换</li>
<li>10,000+ 人社区助力</li>
<li>Taro-UI、物料市场打造 Taro 生态 </li>
</ul>
</body>
</html>
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