When I resize the windows below 767/768 px width, the body and navbar get a strange right margin/padding (20px each ; which does a total of 40 white pixels at the right side of the navbar). I can't find if it is a BS normal behavior or if I did something wrong.
The only fragment of css size/padding/margin bootstrap overwriting is :
.navbar { margin-bottom: 20px; }
Here the HTML :
<body>
  <header class='navbar navbar-static-top'>
    <nav class='navbar-inner'>
      <div class='container'>
        <a class='btn btn-navbar' data-target='.nav-collapse' data-toggle='collapse'>
          <div class='icon-bar'></div>
          <div class='icon-bar'></div>
          <div class='icon-bar'></div>
        </a>
        <a href="/" class="brand">Brand Name</a>
        <div class='nav-collapse collapse'>
          <ul class='nav'>
            <li><a href="...">...</a></li>
            <li><a href="...">...</a></li>
            <li><a href="...">...</a></li>
          </ul>
          <form accept-charset="UTF-8" action="/search" class="navbar-search pull-right" method="get">
            <input class="search-query" id="q" name="q" placeholder="Search" type="text" />
            <input class="hidden" type="submit" value="Find" />
          </form>
        </div>
      </div>
    </nav>
  </header>
  <div class='container'>
    <div class='row'>
      <div class='span12'>
        <!-- ... -->
      </div>
    </div>
  </div>
</body>
I use bootstrap-sass gem with rails. I'm unsure about .container role.