Element block pseudo-class :active generated with box-sizing content-box border 0px rgba(0,0,0,1) solid padding 20px float none border-radius font-size 16px height auto width 160px transition display block overflow hidden background position static margin 0px transform text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-shadow 1px 1px 1px rgba(0,0,0,0.3) font-weight normal line-height 1 z-index auto cursor default