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