Spacing

React Bootstrap 5 Spacing component

MDB includes a wide range of shorthand responsive margin and padding utility classes to modify an element’s appearance.

How it works

Assign responsive-friendly margin or padding values to an element or a subset of its sides with shorthand classes. Includes support for individual properties, all properties, and vertical and horizontal properties. Classes are built from a default Sass map ranging from .25rem to 3rem.

Note: If you want to add margin to the left side you must use the class ms-* (margin start) instead of ml-* (margin left).

Likewise for the margin on the right: you have to use the class me-* (margin end) instead of mr-* (margin right).

Below is an example using classes for the right margin with a visual representation of their sizes. The same sizes apply to all directions (left, right, top, bottom) and for both margins and padding.

Notation

Spacing utilities that apply to all breakpoints, from xs to xxl, have no breakpoint abbreviation in them. This is because those classes are applied from min-width: 0 and up, and thus are not bound by a media query. The remaining breakpoints, however, do include a breakpoint abbreviation.

The classes are named using the format {property}{sides}-{size} for xs and {property}{sides}-{breakpoint}-{size} for sm, md, lg, xl, and xxl.

Where property is one of:

• m - for classes that set margin
• p - for classes that set padding

Where sides is one of:

• t - for classes that set margin-top or padding-top
• b - for classes that set margin-bottom or padding-bottom
• s - for classes that set margin-left or padding-left in LTR, margin-start or padding-start in RTL,
• e - for classes that set margin-right or padding-right in LTR, margin-end or padding-end in RTL
• x - for classes that set both *-left and *-right
• y - for classes that set both *-top and *-bottom
• blank - for classes that set a margin or padding on all 4 sides of the element

Where size is one of:

• 0 - for classes that eliminate the margin or padding by setting it to 0
• 1 - (by default) for classes that set the margin or padding to $spacer * .25
• 2 - (by default) for classes that set the margin or padding to $spacer * .5
• 3 - (by default) for classes that set the margin or padding to $spacer
• 4 - (by default) for classes that set the margin or padding to $spacer * 1.5
• 5 - (by default) for classes that set the margin or padding to $spacer * 3
• auto - for classes that set the margin to auto

(You can add more sizes by adding entries to the $spacers Sass map variable.)

Examples

Here are some representative examples of these classes:

        
            
            .mt-0 {
              margin-top: 0 !important;
            }
            
            .ml-1 {
              margin-left: ($spacer * .25) !important;
            }
            
            .px-2 {
              padding-left: ($spacer * .5) !important;
              padding-right: ($spacer * .5) !important;
            }
            
            .p-3 {
              padding: $spacer !important;
            }
          
        
    

        
            
            import React from 'react';
            
            export default function App() {
              return <div className="mx-auto" style={{width: "200"}}>Centered element</div>
            }            
          
        
    

        
            
            .mt-n1 {
              margin-top: -0.25rem !important;
            }
          
        
    

        
            
            import React from 'react';
            
            export default function App() {
              return (
                <div className="d-grid gap-3">
                  <div className="p-2 bg-light border">Grid item 1</div>
                  <div className="p-2 bg-light border">Grid item 2</div>
                  <div className="p-2 bg-light border">Grid item 3</div>
                </div>
              );
            }            
            
        
    

Extra scale for the bottom margin

By default, MDB provides an additional scale for the bottom margin.

This allows for easier positioning of larger elements (such as sections or design blocks) in relation to each other and more comfortable creating a layout with a consistent composition.

Note:The standard scale with classes from .mb-1 to .mb-5 works as normal. The classes below are additional and only apply to the bottom margin.

Related resources