body {
	background-color: #00C853;
}
div#container {
	background-color: #fff;
	padding: 20px;
	width: 30%;
	text-align: center;
	margin: 150px auto;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: space-around;
	height: 400px;
	-webkit-box-shadow: 7px 9px 5px 0px rgba(0,0,0,0.13);
	-moz-box-shadow: 7px 9px 5px 0px rgba(0,0,0,0.13);
	box-shadow: 7px 9px 5px 0px rgba(0,0,0,0.13);
	font-family: monospace;
}
div#timer {
	color: #757575;
	font-size: 50px;
}
button {
	width: 128px;
}