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