I am running my web application using default bootstrap-sass on laptop with screen resolution - 1366 x 768. 

* If I use container-fluid, the alert expands to fit screen width as expected
* Using container class is rendering a width of 728px.

As per my screen resolution, it should be using 1170px. Please let me know if my understanding is correct. I also have this meta tag in my `index.html`

```
<meta name="viewport" content="width=device-width">

```

[![Image showing the difference](https://i.stack.imgur.com/rPFYa.png)](https://i.stack.imgur.com/rPFYa.png)