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