what is flipv and fliph : is it removed from css3

Question

      <style>
        <!--
       .verticaltext {
           writing-mode: tb-rl;
           filter: flipv fliph;
        }
       -->
       </style> 

what is flipv and fliph ? Even if i remove them I can see the text vertical ? I have seen many places it's used and at some not...

Answer 1

Those are proprietary IE CSS things that you can do to flip text vertically or horizontally.