.I want to implement the bootstrap in my code

I have implemented the bootstrap in my code, because the other os like mac is not supporting(getting allignment issues).after bootstrap implementation also facing allignment issuesHow to fix the allignment issues in macos.How to fix this issue import "bootstrap/dist/css/bootstrap.min.css"; import "bootstrap/dist/js/bootstrap.bundle.min";. added this is App.js and index.js added dependies in package.json alsogetting allignment issue in header and sidenav