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