sanryuu/index.html

## index.html
<html>
  <head>
    <link rel="stylesheet" href="sample.css">
  </head>

  <div class="background">
    <div class="clicked">
    </div>
  </div>
  </body>
</html>

## sample.css
.background{
    background-color:blue;
    position: absolute;
    top:  00px;
    left: 00px;
    height: 300px;
    width: 300px;
}

.clicked{
    background-color:red;
    position: absolute;
    top:  0px;
    left: 300px;
    height: 300px;
    width: 300px;
}

.clicked:hover{
    top:  0;
    left: 0;
}

.background:active .clicked{
    top:  0;
    left: 0;
}
	<html>
	<head>
	<link rel="stylesheet" href="sample.css">
	</head>

	<div class="background">
	<div class="clicked">
	</div>
	</div>
	</body>
	</html>
	.background{
	background-color:blue;
	position: absolute;
	top: 00px;
	left: 00px;
	height: 300px;
	width: 300px;
	}

	.clicked{
	background-color:red;
	position: absolute;
	top: 0px;
	left: 300px;
	height: 300px;
	width: 300px;
	}

	.clicked:hover{
	top: 0;
	left: 0;
	}

	.background:active .clicked{
	top: 0;
	left: 0;
	}