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