Help with css

Hey guys i need help i'm making an game launcher in electron so i'm using html and css and i'm don't know how to fix the place of the objects on the screen, and i'm using bootstrap css too i opened an issue on github if someone can help https://github.com/Good-Game-devs/LauncherGG/issues/1

GitHub

Fix UI grid and organization · Issue #1 · Good-Game-devs/LauncherGG

Please someone help with the css main css file App.css for helping with the css create a new pull request with the updated file