Twitter Bootstrap 3.0 row wider than window

I fixed it by just removing margin-left & margin-right from .row in bootstrap and also by setting it's width to 100%

The correct solution (https://getbootstrap.com/docs/3.3/css/#grid-example-fluid) is to use the container-fluid class on the surrounding div:

<div class="container-fluid">
  <div class="row">
    Content
  </div>
</div>