My suggestion is that during the coding process, you test in multiple browsers with each change. For example, code the header and then test in multiple browsers and make adjustments as necessary. Then move onto the subheader and test and adjust as necessary. Do it in pieces instead of coding the entire page and then checking in other browsers. If you catch the problem beforehand, you may save yourself headaches in the end because one problem usually creates another.
I do have a
tutorial on how to test in multiple browsers when using Dreamweaver.