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