My columns don't re-arrange as I adjust my browser window - text flows underneath, and the photo does not stack.

Can you post your code with the question so we can take a look at what you have so far? If you need some guidance for posting code please checkout the Markdown Cheatsheet (below the comment / answer textarea)

Hi Jeff,

As Keith says, we really can't help until we see your code.

Here is a link to explain how to use Markdown to post your code How to post code

If you look at the bottom of the box when your typing a reply you will see Markdown Cheatsheet that will also explain how to post your code.

You have to make sure you have a bit of space under your last line of text in your post. Then you add three back ticks followed by html or css depending on the type of code your inserting.
Then straight after your last line of code you add another three back ticks.
Remember to leave at least a few lines between any text at the top or bottom of your code.

Hope this helps.