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