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