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