bootstrap navbar container when scroll down navbar fixed top container fluid - Stack Overflow
Dropdown menus in page appear underneath fixed top navbar · Issue #25962 · twbs/bootstrap · GitHub
Bootstrap on Twitter: "Ayyy, now that flexbox is standard in v4, we have a new navbar coming. Demo: https://t.co/H1cWU9DhKi. PR: https://t.co/tS1yPDFVeN https://t.co/Fp1uVRrPP1" / Twitter
Bootstrap 4 navbar menu: The navigation header with 10 Templates