One pixel problem code

. Set_top_line (@c: #C7C7C7) {
Content: "";
Position:absolute;
left:0;
top:0;
width:100%;
height:1px;
border-top:1px solid @c;
transform-origin:0 0;
-webkit-transform:scaley (1/3);
Transform:scaley (1/3);
}


. Set_bottom_line (@c: #C7C7C7) {
Content: "";
Position:absolute;
left:0;
bottom:0;
width:100%;
height:1px;
border-bottom:1px solid @c;
Transform-origin:0 100%;
-webkit-transform:scaley (1/3);
Transform:scaley (1/3);
}


. Set_left_line (@c: #C7C7C7) {
Content: "";
Position:absolute;
left:0;
top:0;
width:1px;
height:100%;
border-left:1px solid @c;
transform-origin:0 0;
-webkit-transform:scalex (1/3);
Transform:scalex (1/3);
}


. Set_right_line (@c: #C7C7C7) {
Content: "";
Position:absolute;
right:0;
top:0;
width:1px;
height:100%;
border-right:1px solid @c;
Transform-origin:0 100%;
-webkit-transform:scalex (1/3);
Transform:scalex (1/3);

}

&:after{
Content: ";
width:300%;
height:300%;
Position:absolute;
top:0;
left:0;

border:1px solid @c;

border-radius:4px;
-webkit-transform:scale (1/3);
Transform:scale (1/3);
-webkit-transform-origin:0 0;
transform-origin:0 0;
}