tr#header {
	background-color:rgba(255,255,255,0.9);
	text-align:left;
}
td#lower {
	background-color:rgba(255,255,255,0.7);
}
tr:nth-child(even) {background-color: rgba(240,240,240,0.8);}
tr:nth-child(odd) {background-color: rgba(255,255,255,0.6);}