table {
    border-collapse: collapse;
}

table, th, td {
    border: 1px solid black;
}

th {
	text-align: center;
}

td {
	text-align: right;
}

.grid-elt {
	position: absolute;
}

#grid {
	margin-top: 10px;
}

#div-100px {
	background-color: lightblue;
	width: 100px;
	height:100px;
}

#div-200px {
	background-color: red;
	width: 200px;
	height:200px;
}

#div-300px {
	background-color: yellow;
	width: 300px;
	height:300px;
}

#div-400px {
	background-color: purple;
	width: 400px;
	height:400px;
}

#div-500px {
	background-color: brown;
	width: 500px;
	height:500px;
}

#div-600px {
	background-color: green;
	width: 600px;
	height:600px;
}