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