html,body,div,canvas,nav,input,ul,li {
	margin:0;
	padding:0;
}
#box {
	width:600px;
	height:500px;
	margin:0px auto;
	background-color:palevioletred;
}
#box nav {
	width:100%;
	height:100px;
}
#box nav div {
	height:50px;
	line-height:50px;
}
#box nav .changeColor {
	padding-left:15px;
}
.changeColor input {
	width:30px;
	height:30px;
	margin:0 15px;
	vertical-align:middle;
}
.clear input {
	margin-left:15px;
	width:100px;
	height:30px;
	background-color:cadetblue;
}
canvas {
	background-color:gainsboro;
}