style.css

#zPlaneDiv
{
	width: 50%;
	height: 50%;
	float: left;
}

#zCanvas
{
	border: 1px solid #000000;
}

#wPlaneDiv
{
	width: 50%;
	height: 50%;
	float: right;
}

#wCanvas
{
	border: 1px solid #000000;
}

.settings
{
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0,0,0); /* Fallback color */
    background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}

.settings-content 
{
    background-color: #fefefe;
    margin: 15% auto; /* 15% from the top and centered */
    padding: 20px;
    border: 1px solid #888;
	width: 200px;
}