.border:after{
content: " ";
width: 200%;
height: 200%;
position: absolute;
top: 0;
left: 0;
border: 1px solid rgba(0,0,0,.2);
-webkit-transform: scale(.5);
transform: scale(.5);
-webkit-transform-origin: 0 0;
transform-origin: 0 0;
box-sizing: border-box;
border-radius: 10px;
content: " ";
width: 200%;
height: 200%;
position: absolute;
top: 0;
left: 0;
border: 1px solid rgba(0,0,0,.2);
-webkit-transform: scale(.5);
transform: scale(.5);
-webkit-transform-origin: 0 0;
transform-origin: 0 0;
box-sizing: border-box;
border-radius: 10px;
}
.border{positon:relative}