Bootstrap 4 container fluid unwanted margins [duplicate]

Answer 1

container-fluid has padding-left and padding-right of 15px which is the gap you're seeing. You could overwrite it by adding the class px-0 which is padding of 0 for left and right. And you would then have to overwrite the 15px margins of the row with a mx-0 class.

But if it's a nav that you want, then what you should be using is the nav component of Bootstrap: https://getbootstrap.com/docs/4.1/components/navbar/

Answer 2

Not sure if this is what you're looking for:

Here's the jFiddle

  <nav class="fixed-top navbar-light bg-light m-0 p-0">
  <div class="container-fluid">
    <div class="row text-center text-light bg-secondary p-1">
      <div class="col">
        Line number 1 content here
      </div>
    </div>
     <div class="row text-center text-secondary bg-light p-1">
      <div class="col">
        Line number 2 content here
      </div>
    </div>
  </div>
 </nav>

Answer 3

I think the bootstrap "row" class adds some margin (15px). Maybe you can add an own class to make margin: 0. Or delete the row class

I wish that helped!

Thank you.