Preview in More Than One Browser

You've designed your site, gotten it to look just right, proofread, and checked that all the links work.  It looks great in the browser you use, so you're done, right?  Not exactly.  Each browser interprets fonts, percentages and settings differently - what lines up in one browser, may not in another.  It's important to check your site in a variety of browsers to make sure it looks consistent in each one.  It is impossible to get a site to look exactly the same across all browsers, but make sure it looks pretty close.  Popular browsers to check include Firefox, Safari, Opera, Chrome and Internet Explorer.