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