图片上传样式

<a href class='pic' title='继续上传'></a>

.pic{
  display: inline-block;
  width: 76px;
  height: 76px;
  color:#ccc;
  border:2px dashed;
  position: relative;
  overflow: hidden;
  transition: all .25s;
  &::before,&::after{
    content: '';
    position:absolute;
    top: 50%;
    left: 50%;
  }
  &::before{
    width: 20px;
    border-top:4px solid;
    margin: -2px 0 0 -10px;
  }
  &::after{
    height: 20px;
    border-left:4px solid;
    margin: -10px 0 0 -2px;
  }
  &:hover{
    color:skyblue
  }
}

效果图