Is there a way to make an image expand to fit different screen sizes?

[Aranya Gardens]

I'm just getting started, but the help has very little information about images. I added an image to my start screen of the right size to fit, but inevitably when I preview the page at different screen sizes the image doesn't fit any more. Is there a way of making the image resize dynamically? Thanks.

[Maryna Brodina]

Hello! Specify relative image size (in % or vh/vw, not pixels)

[Aranya Gardens]

Brilliant.Thank you!!
Would you suggest I upload an image to fit the maximum screen size? Or would this make the app an unnecessarily large file size on smaller phones?

[Nikita]

Hello,

Yes, image with maximum screen size may greatly increase the app size. BTW it isn't a fact that this image looks the best. Better solution is using most popular size. And of course you should check how it looks on different resolution (big and small)

[Aranya Gardens]

OK, thanks Nikita, I have a Note 2 so that's a fairly big screen, but not as big as a tablet. I'll make sure I send it out to a few people with different screens for testing.