I'm best at helping with:
Believe me, I know what it's like to have a CSS freakout. Here are some things I just dealt with at work last week:
• Why is flexbox not vertically centering in Internet Explorer 11?
• Why's my header overlapping YouTube videos in fullscreen mode?
• How come my sticky sidebar disappears on a real iPad but works fine in the iOS emulator?
Honestly, I love figuring this stuff out. I love getting back to the basics, because when we understand why things go wrong we can fix them now and avoid them next time.
So, if I can help you save a headache with your front-end development, hit me up.
Thanks 🙂