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