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