I have a div on my website with around 500 words of unique content in, automatically when the page is first visited the div has a fixed height of 100px, showing a couple of hundred words and fading out to white, with a show more button, which when clicked, increases the height to show the full content.

My question is, does Google crawl the content in that div when it renders the page? Or disregard it? Its all in the source code.

Or worse, do they consider this cloaking or hidden content?

It is only there to make the site more useable for customers, so i don't want to get penalised for it.

Cheers