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