master.css

body { font-family:Verdana, Arial; padding:0; margin:0; background-color:#EEE; }

#header { background-color:#CCC; margin:0; padding:20px; }
#header h1 { margin:0; }

#left { width:200px; float:left; padding:1em; }
#right { width:200px; float:left; padding:1em;}
table { border-collapse:collapse; }
table td { width:50px; height:50px; border:1px solid black; }

div#right { font-size:12px; color:red; }

#canvas { padding:0 1em;}

#message {
  padding: 1em;
  background-color: green;
	color:#FFF;

}
canvas#painthere {
    width: 300px;
    height: 300px;
    padding: 0;
    border: 1px solid black;
		background-color:#FFF;
}
#overboard {
    width: 100%;
    height: 20px;
}
#overboard:hover {
    background-color: red
}