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