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