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