.top_border {
	border-top-width: thin;
	border-top-style: solid;
	border-top-color: #000000;
}
.left_border {
	border-left-width: thin;
	border-left-style: solid;
	border-left-color: #000000;
}
.all_borders {
	border: thin solid #000000;
}
.hover {
	cursor: crosshair;
}