Bobbutterfly

Hello guys! I have an issue on my website. As you can see on the inclosed picture, I have white borders on my footer. But they appear only on phone screens and I can't see where they are located in the CSS... Any idea please? Thank you in advance!

Hello everyone! I've got 6 details I wish to improve through my WP theme, Evolve. And I guess I need some CSS for them but I'm not good enough right now to do it all alone... So, I'm asking for your help today! I hope I'm not asking to much... Here is my (french) website : le-chemin-du-butterfly.fr 1. You can see I've got a widget on the right of my page. I'd like to resize it to give more space to my text (right now, it's 66% and 33% and I would like 75%-25%). I tried some things but I have to made it so that it still responsive. But I don't know how... I guess I have to add some If or And