Is it wrong to change a block element to inline with CSS if it contains another block element?

Question

I know it\'s wrong to put a block element inside an inline element, but what about the following?

Imagine this valid markup:

This         


        
      

Answer 1

The HTML and the CSS will both still be valid. Ideally, you wouldn't have to do something like this, but that particular bit of CSS is actually a handy (and syntactically valid but not semantically valid) way for getting Internet Explorer's double margin bug without resorting to conditional stylesheets or hacks that will invalidate your CSS. The (X)HTML has more semantic value than the CSS, so it's less important that the CSS is semantically valid. In my mind, it's acceptable because it solves an annoying browser issue without invalidating your code.