body {
	font: 20px/1.5 Helvetica;
	margin: 0;
	margin-bottom: 50px;
	background: #222;
	background-size: cover;
	color: #fff;
	line-height: 30px;
}
.matrixform {
	color: #fff;
}
.matrixform > p {
	color: lightblue;
}

.matrixform input[type=number] {
	width: 60px;
	background-color: rgba(255, 255, 255, 0.3);
	border: none;
	padding: 5px;
	color: #fff;
	height: 30px;
	margin-top: 5px;
}

button {
	width: 150px;
	color: #fff;
	background-color: rgba(0, 0, 0, 0.3);
	border: none;
	padding: 10px;
	margin: 10px;
	transition: 0.25s;
}

button {
	background-color: lightblue;
	color: #000;
	cursor: pointer;
}

.box {
	width: 65%;
	padding: 20px;
	background-color: rgba(0, 0, 0, 0.5);
	color: #fff;
	margin-top: 20px;
	display: block;
}
p {
	display: inline-block;
}
.result {
	line-height: 5px;
}
.block {
	padding: 15px;
	background-color: rgba(255, 255, 255, 0.3);
	width: 55px;
	height: 30px;
	margin: 10px 10px 0px 0px;
	color: #fff;
}