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