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