css

背景图片居中加边框

.bg-img{                background: url(../images/加.png);                background-position: center;                background-size: contain;                background-repeat: no-repeat;                border: 2px dashed #323232 ;                border-radius: 15%; //边框弧度            }

全透明

.hide-icon{                color:#eee;                opacity: 0.0;            }