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