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