* {
	margin: 0;
	padding: 0;
}

body {
	font-family: arial, sans-serif;
	text-align: center;
}

h1 {
	text-align: center;
	margin-top: 30px;
}

#controls {
	border: 1px solid #ccc;
	width: 600px;
	margin: 15px auto;
	padding: 10px;
	text-align: center;
}

#linesContainer {
	border: 1px solid #777;
	margin: 10px auto;
	position: relative;
	width: 800px;
	height: 600px;
	background: #fff url('../i/b.png') repeat 0 0;
}

.segment {
	position: absolute;
	border: 1px solid red;
	overflow: hidden;
}