default css for container in bootstrap code example

Example 1: container in bootstrap

Containers
Containers are the most basic layout element in Bootstrap and are required when using our default grid system. Choose from a responsive, fixed-width container (meaning its max-width changes at each breakpoint) or fluid-width (meaning it’s 100% wide all the time).
While containers can be nested, most layouts do not require a nested container.

Syntax:
<div class="container">
  <!-- Content here -->
</div>

Example 2: bootstrap container width

--------------------------------------------------------------------------------------
Bootstrap Container Width			 					| Size        | Class Prefix
--------------------------------------------------------------------------------------
Extra small devices Phones (less than 768px)  			| None (auto) | .col-xs-
Small devices Tablets (greater than equals 768px) 		| 750px       | .col-sm-
Medium devices Desktops (greater than equals 992px)     | 970px       | .col-md-
Large devices Desktops (greater than equals 1200px)     | 1170px      | .col-lg-