dwg to html5 canvas codepen
#gl-canvas { border: black solid 2px;
border-radius: 5px;
background-color: black}
#tBut { background-color: purple;
color: white;}
#sqBut { background-color: red;
color: white;}
#stBut { background-color: green;
color: white;}
#controls { position: absolute;
top: 8px;
left: 540px;
background-color: lightgray;
border: 2px solid black;
border-radius: 5px;
padding: 5px;}
.row { border: 1px solid gray;
border-radius: 5px;
padding: 3px;
margin-top: 3px;}
.disabled { display: none; }