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