For this reason, if you do decide to use frames, you should at least provide an additional non- frames version of your Web site. Thus, documents inside frames are not properly bookmarkable, and search engines cannot properly index them. Frames are dependent on screen size, so your page will sometimes look terrible on a differently sized screen. There is no reliable way for Web surfers to predict the behavior of a site which has frames. A can cause frame B to update, or could cause frame C to update.
Frames waste valuable screen space.
Once a document is constrained inside a frame, it is practically impossible for most Web surfers to pop that document out to use the entire window. There are many more reasons to avoid frames. Ribbon Campaign Buttons page. Even sites which don't have a non-frames version can use the ribbon if they are sympathetic to the cause. Web design to gain recognition and increase the traffic through their sites.