container
The .container class can be used in any context, but mostly as a
                        direct child of either:
.navbar.hero.section.footer
 The containers
                        width for each
                        breakpoint is the result of: $device - (2 * $gap). The $gap variable has a default value of 
                  32px but can be modified. 
This is how the container will behave:
- on 
$desktopit will have a maximum width of 960px. - on 
$widescreenit will have a maximum width of 1152px. - on 
$fullhdit will have a maximum width of 1344px. 
The values 960, 1152 and 1344 have been chosen because they are divisible by both 12 and 16.
                    
                        
                        <div class="container">
                          <div class="notification">
                            This container is <strong>centered</strong> on desktop.
                          </div>
                        </div>
                        
                    
                
                    Fluid container
If you don't want to have a maximum width but want to keep the 32px margin on the left and right sides, add the is-fluid modifier:
                    
                        
                        <div class="container is-fluid">
                          <div class="notification">
                            This container is <strong>fluid</strong>: it will have a 32px gap on either side, on any
                            viewport size.
                          </div>
                        </div>
                        
                    
                
                    Breakpoint containers
With the two modifiers .is-widescreen and .is-fullhd, you can have a
                        fullwidth container
                        until those specific breakpoints.
$widescreen breakpoint. 
                    
                        
                        <div class="container is-widescreen">
                          <div class="notification">
                            This container is <strong>fullwidth</strong> <em>until</em> the <code>$widescreen</code> breakpoint.
                          </div>
                        </div>
                        
                    
                 $fullhd breakpoint. 
                    
                        
                        <div class="container is-fullhd">
                          <div class="notification">
                            This container is <strong>fullwidth</strong> <em>until</em> the <code>$fullhd</code> breakpoint.
                          </div>
                        </div>