body{
	padding: 10px;
	margin: 0;
	border: 0;
}
img{border:1px solid rgba(0,0,0,0)
}
img:hover{
  border-left:1px solid rgba(255,255,255,.25);
  border-top:1px solid rgba(255,255,255,.25);
  border-right:1px solid rgba(0,0,0,.25);
  border-bottom:1px solid rgba(0,0,0,.25);
}
img:active{
  border-left:1px solid rgba(0,0,0,.25);
  border-top:1px solid rgba(0,0,0,.25);
  border-right:1px solid rgba(255,255,255,.25);
  border-bottom:1px solid rgba(255,255,255,.25);
}