body {
	margin: 0px;
}
.box {
	width: 300px;
	height: 100px;
	border-radius: 10px;
  	border: 5px solid black;
	box-shadow: 2px 5px 10px;
	margin: 10px;
	float: left;
	position: relative;
	top: 10px;
	left: 10px;
}
.box:hover {
	width: 320px;
	height: 115px;
	background-color: white;
	top: 5px;
	left: 5px;
}
.color-red {
	background-color: red;
}
.color-blue {
	background-color: blue;
}
.color-green {
	background-color: green;
}
.color-yellow {
	background-color: yellow;
}
#center {
	margin-left: 30%;
	margin-right: 30%;

}