Bootstrap 4 Image Header Custom Navbar
Bootstrap 4 Full Page Image Header
https://startbootstrap.com/snippets/full-image-header/
https://getbootstrap.com/docs/4.0/utilities/sizing/
custom navbar:
Bootstrap 4 Full Page Image Header
https://startbootstrap.com/snippets/full-image-header/
https://getbootstrap.com/docs/4.0/utilities/sizing/
custom navbar: