Title should not overflow the content area A few things to check for: Non-breaking text in the title, content, and comments should have no adverse effects on layout or functionality. Check the browser window / tab title. If you are a plugin or widget developer, check that this text does not break anything. The following CSS properties
This post has no title, but it still must link to the single post view somehow. This is typically done by placing the permalink on the post date.
Edge Case: Many Categories
This post has many categories.
Edge Case: Nested And Mixed Lists
Nested and mixed lists are an interesting beast. It's a corner case to make sure that Lists within lists do not break the ordered list numbering order Your list styles go deep enough. Ordered - Unordered - Ordered ordered item ordered item unordered unordered ordered item ordered item ordered item ordered item Ordered - Unordered - Unordered ordered item ordered item unordered unordered unordered item unordered item ordered item ordered item Unordered -