Do not use animated GIFs : unless you have advertising banners that require animation, avoid animated GIFs. They make a site look unprofessional and detract the attention from the content.

• 不要使用动态GIF。除非你有需要动画的广告条，否则避免使用动态GIF。它会使网站看上去很业余，并且会分散访问者的注意力。