cheatsheet https://hackerthemes.com/bootstrap-cheatsheet
- based on flexbox
- 12 column system
- outer element is always at least one ".container" class
- don't nested ".container" class
- .row only inside .container
- .col only inside .row
<body>
<div class="container bg-primary">
<div class="row">
<div class="col">
<h2>.container</h2>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. A accusantium aspernatur autem beatae blanditiis cumque dolorum ducimus facilis impedit in laborum magni nihil perferendis quam, quia rem sint suscipit veniam.</p>
</div>
</div>
</div>
</body>
<body>
<div class="container-fluid bg-info">
<div class="row">
<div class="col">
<h2>.container-fluid</h2>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. A accusantium aspernatur autem beatae blanditiis cumque dolorum ducimus facilis impedit in laborum magni nihil perferendis quam, quia rem sint suscipit veniam.</p>
</div>
</div>
</div>
</body>