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