CSS 偶數與奇數列

table tr:nth-child(even){ background-color: #CCFF99; }

table tr:nth-child(odd){ background-color: #053D0A; }

table tr:nth-child(3n){ background-color: #666666; }

table tr:nth-child(3n+1){ background-color: #0066FF; }

ul li:first-child {background: #FF0}

ul li:last-child {background: #FF0}