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