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