纯CSS写的对勾样式
& .cicle{
position: relative;
float: right;
margin-right: -1rem;
vertical-align: middle;
width: 1.4rem;
height: 1.4rem;
border: 1px solid #3399ff;
border-radius: 50%;
}
& .select:after {
content: '\00a0';
display: inline-block;
border: 2px solid #3399ff;
border-top-width: 0;
border-right-width: 0;
width: 9px;
height: 5px;
-webkit-transform: rotate(-50deg);
position: absolute;
top:3px;
left:2px;
}