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