Hi Tess! Page looks good so far, one thing to add is probably changing the font color so that it contrasts more with the background, as it can be a little hard to see sometimes.
- As for rems, that would be the correct way to use it as you are doing now, I see that you set your overall font size to 62.5%, which is perfect in combination with rems, so for responsiveness, all you would need to do is change the percent in the overall font-size in your media queries, as all the sizes will change in relative to that percentage.
And just remember with ems, they take after the overall font-size of the parent container, so if that’s what you’re after then that would work.
As for the troubles with your media queries, how are you wanting it to display on your phone?
By the silver background, are you referring to the lightish brown color? Because when removing your margin top, it still looks the same. Or are you wanting the header itself flush to the top of the page?