body { font-family: courier new; font-size: 0.75em; }
table { border-collapse: collapse; width: 100%; text-align: left; vertical-align: top; }

.stack span,
.failed span,
.passed span {
	width: 60px;
	display: block;
	text-align: center;
	font-size: 0.85em;
	border-radius: 4px; -moz-border-radius: 4px; -webkit-border-radius: 4px;
}
.failed span { background-color: #FFCC66; border: 1px solid black; color: black; cursor: help; }
.passed span { background-color: #66BB66; border: 1px solid green; color: green; }
.stack span { background-color: #efefef; border: 1px solid #444; color: #444;  cursor: help; }