InDesign CC: adjusting page size to fit the content

If you change the size of the page manually (File > Document Setup), it will change the size of all pages, not just this page. I'm going to approach this as if you are a super beginner (no problem with that) and you're dropping everything in as a single illustrator file. Please correct me if I'm wrong.

Here are two things I'd advise:

• Quick Solution: Change the background color of the image media box to the same color as the background of your illustrator file.
• Best Practice Solution: Type everything directly in InDesign, bring in the background color separately, and import all the images as separate files. But why? Importing type from Illustrator can give you mixed results, importing the files separately will allow you to quickly edit your page with out switching programs, and your computer won't slow down while making these edits because its not constantly rendering huge files.

Best of luck!