A horrible example of tabs design can be found at Yahoo! Shopping. It’s weird to see these kind of things at Yahoo! but it’s true.

Here you can see two tabs highlighted at the same time. If you don’t want to confuse your users please don’t do this.

Clicking on “Holiday Gifts” the tab labels change, “More” disappear. Another usability problem I find is that they use so many words written in capitals everywhere on the site. Without doubt words written in capitals are harder to read. Plus, “SHOP FOR” is highlighted, it just looks horrible.

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