Element block pseudo-element :after generated with background border-radius border 0px rgba(0,0,0,1) solid line-height 1 width 300px font-weight normal box-sizing content-box box-shadow 0px 0px 0px rgba(0,0,0,0.3) transition height auto overflow hidden padding 20px text-shadow 0px 0px 0px rgba(0,0,0,0.2) outline none z-index auto cursor default margin 0px transform position static float none font-size 16px opacity 1 display block