Element block pseudo-class :active generated with background border 0px rgba(0,0,0,1) solid display block transform cursor default transition width auto font-weight normal overflow hidden line-height 1 float left position static z-index auto border-radius box-shadow 1px 1px 1px rgba(0,0,0,0.3) height auto font-size 16px padding 20px text-shadow 1px 1px 1px rgba(0,0,0,0.2) margin 0px box-sizing content-box