Criteria Explanation E19. Absence of Attention Clashes, Differences Attention clashes, on the other hand, distract (take away) attention from your topic by doing "something" incomprehensible or bizarre in your web design or presentation, or even in your content. Major differences in web design must be avoided. Keep all sections or parts of your website reasonably similar in layout. Slight color changes to characterize separate topics or sections are acceptable, but not mayor structural changes in layout or design.