Can you explain the purpose of the class "mb-0" in Bootstrap 4?

Check out the most recent documentation which contains the following:

<p class="mb-0">Lorem ipsum</p>

Can you explain what mb-0 means?

Answer №1

Enhance Your Design with Bootstrap 4

Discover the extensive selection of responsive margin and padding utility classes offered by Bootstrap, perfect for all screen sizes:

xs (<576px), sm (>=576px), md (>=768px), lg (>=992px) or xl (>=1200px))

The formatting of these classes is as follows:

{property}{sides}-{size} for xs & {property}{sides}-{breakpoint}-{size} for sm, md, lg, and xl.

m - adjusts margin

p - manages padding


t - sets margin-top or padding-top

b - sets margin-bottom or padding-bottom

l - aligns margin-left or padding-left

r - arranges margin-right or padding-right

x - configures both padding-left and padding-right or margin-left and margin-right

y - determines both padding-top and padding-bottom or margin-top and margin-bottom

blank - applies margin or padding on all 4 sides of the element


0 - sets margin or padding to 0

1 - sets margin or padding to .25rem (4px if font-size is 16px)

2 - sets margin or padding to .5rem (8px if font-size is 16px)

3 - sets margin or padding to 1rem (16px if font-size is 16px)

4 - sets margin or padding to 1.5rem (24px if font-size is 16px)

5 - sets margin or padding to 3rem (48px if font-size is 16px)

auto - automatically adjusts margin setting

Explore more at Bootstrap 4.5 - Spacing

Learn further in w3schools

Answer №2

Bootstrap 4

Utilized for setting a zero bottom margin (margin-bottom:0). Check out more of the latest spacing utility classes here: https://getbootstrap.com/docs/4.0/utilities/spacing/

For more information, visit: How do I use the Spacing Utility Classes on Bootstrap 4

Answer №3

m - used for margin-related classes, as shown below :

  • mt - sets margin-top
  • mb - sets margin-bottom
  • ml - sets margin-left
  • mr - sets margin-right
  • mx - sets both margin-left and margin-right
  • my - sets both margin-top and margin-bottom

Sizes available for margins :

  • 0 - eliminates the margin (e.g., mt-0)
  • 1 - sets margin to $spacer * .25 (e.g., mt-1)
  • 2 - sets margin to $spacer * .5 (e.g., mt-2)
  • 3 - sets margin to $spacer (e.g., mt-3)
  • 4 - sets margin to $spacer * 1.5 (e.g., mt-4)
  • 5 - sets margin to $spacer * 3 (e.g., mt-5)
  • auto - sets margin to auto (e.g., mx-auto)

Answer №4

Bootstrap offers a range of pre-defined classes for easy styling.

If you have experience with CSS, terms like padding, margin, and spacing will be familiar to you.

For instance, mb-0 translates to margin-bottom: 0;

Expanding on this concept, Bootstrap provides additional classes for handling margins:

mt- = margin-top
mb- = margin-bottom
ml- = margin-left
mr- = margin-right
my- = sets margin on y-axis simultaneously 
mX- = sets margin on x-axis simultaneously

To delve deeper into these concepts, visit https://getbootstrap.com/docs/5.0/utilities/spacing/

The best way to gain insight is by exploring the official Bootstrap site at https://getbootstrap.com. It offers comprehensive explanations of its ready-to-use classes.

Answer №5

m - defines the margin

p - determines the padding

t - specifies margin-top or padding-top

b - indicates margin-bottom or padding-bottom

l - sets margin-left or padding-left

r - adjusts margin-right or padding-right

x - controls both padding-left and padding-right or margin-left and margin-right

y - manages both padding-top and padding-bottom or margin-top and margin-bottom

blank - applies a margin or padding on all 4 sides of the element

0 - sets margin or padding to 0

1 - adjusts margin or padding to .25rem (4px if font-size is 16px)

2 - changes margin or padding to .5rem (8px if font-size is 16px)

3 - defines margin or padding as 1rem (16px if font-size is 16px)

4 - specifies margin or padding as 1.5rem (24px if font-size is 16px)

5 - sets margin or padding to 3rem (48px if font-size is 16px)

auto - automatically adjusts the margin

Answer №6

As the top result for searching "class=mb-0", I want to point out that all previous answers are now outdated. In February 2022, Bootstrap has updated to version 5.1. Here is a link to the new spacing notation you should use in your classes: https://getbootstrap.com/docs/5.1/utilities/spacing/ (notably, left and right are now referred to as start and end in the new notation)

Answer №7

class="pd-1"

p - defines padding

d - specifies default padding

1 - sets 1 unit of padding


CSS class

.pd-1{
       padding: 1rem
     }

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