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