...sometimes. When you put three cells next to each other in a table, you're telling the user agent "this is a row of related data". It's difficult to intelli

...sometimes. When you put three cells next to each other in a table, you're telling the user agent "this is a row of related data". It's difficult to intelligently choose how to lay those out if there's not space for them to appear side by side. That CSS layout leaves a bit more up to the user agent. The primary content appears first, if there's not space to position each column next to the primary content, it drops down below.