Element block pseudo-element :after generated with border-radius display block transform width 420px margin 0px text-shadow 1px 1px 1px rgba(0,0,0,0.2) background z-index auto box-sizing content-box padding 18px box-shadow 1px 1px 1px rgba(0,0,0,0.3) position relative border 0px rgba(0,0,0,1) solid overflow hidden cursor default float none font-size 16px height 0% font-weight normal line-height 0 transition