动画一:圆圈荡漾
用途:常用于提示用户去点击或勾选
<div style="margin: 30px auto; width: 300px">
<i class="circleRipple"></i>
<span style="margin-left: 30px">圈圈荡漾</span>
</div>
/* 圆圈荡漾 circleRipple*/
.circleRipple{
position: relative;
display: inline-block;
width: 14px;
height: 14px;
border: 1px solid #ddd;
border-radius: 50%;
&:after{
content: ''; /* 注:before,after伪类必须加 content:'';*/
position: absolute;
width: 26px;
height: 26px;
left: -7px;
top: -7px;
border: 4px solid #0093DD;
border-radius: 30px