What could be the problem with css?

Question

css

Hello,
in general, I have been suffering for a very long time with this problem, attention to the screen:

* - this should not be.
Link (and generally a problem in categories) - https://android-1.com/igry/ (Not advertising!!)
This problem appears with the resolution of media screen and (max-width: 470px), and somewhere before media screen and (max-width: 910px) (Indents appear on the right).
Help! I will be extremely grateful..

Answer 1

The main problem is related to the calculation of the width and padding of the "div.FFF". You combine percentages with pixels and you end up with empty areas, because this approach is inflexible, at least in your execution.
Here is an example of how you can implement what you want: jsfiddle.net/e1b3d4z3 .