Accessible Design Guide. By Cari D. Burstein. You Know You're In HTML Design Hell When You See ... "this page is best viewed with Browser X"! Surest sign of an incompetent web designer. This kind of lameness is not just bad taste, it makes the site actually unusable for the large numbers of surfers who happen to be using something other than the designer's favorite browser. Below are some useful tips and links that can help to make your site accessible by all browsers, and better in general.