#main_top, #main_bottom, #main_left, #main_right {
	background: black;
	position: fixed;
	}

	#main_left {
		top: 0; bottom: 0;
		width: 1px;
		}
		#main_left { left: 0; }
		#main_right { right: 0; }

	#main_right {
		top: 0; bottom: 0;
		width: 5px;
		}
		#main_left { left: 0; }
		#main_right { right: 0; }

	#main_top {
		left: 0; right: 0;
		height: 1px;
		}
		#main_top { top: 0; }
		#main_bottom { bottom: 0; }

	#main_bottom {
		left: 0; right: 0;
		height: 5px;
		}
		#main_top { top: 0; }
		#main_bottom { bottom: 0; }

#inner_top, #inner_bottom, #inner_left, #inner_right {
	background: #aaaaaa;
	position: fixed;
	}

	#inner_left {
		top: 0; bottom: 0;
		width: 1px;
		}
		#inner_left { left: 0; }
		#inner_right { right: 0; }

	#inner_right {
		top: 0; bottom: 0;
		width: 1px;
		}
		#inner_left { left: 0; }
		#inner_right { right: 0; }

	#inner_top {
		left: 0; right: 0;
		height: 1px;
		}
		#inner_top { top: 0; }
		#inner_bottom { bottom: 0; }

	#inner_bottom {
		left: 0; right: 0;
		height: 1px;
		}
		#inner_top { top: 0; }
		#inner_bottom { bottom: 0; }

#margin_top, #margin_bottom, #margin_left, #margin_right {
	background: #99cccc;
	position: fixed;
	}

	#margin_left {
		top: 0; bottom: 0;
		width: 1px;
		}
		#margin_left { left: 0; }
		#margin_right { right: 0; }

	#margin_right {
		top: 0; bottom: 0;
		width: 1px;
		}
		#margin_left { left: 0; }
		#margin_right { right: 0; }

	#margin_top {
		left: 0; right: 0;
		height: 1px;
		}
		#margin_top { top: 0; }
		#margin_bottom { bottom: 0; }

	#margin_bottom {
		left: 0; right: 0;
		height: 1px;
		}
		#margin_top { top: 0; }
		#margin_bottom { bottom: 0; }