Bootstrap Spacing Utilities Tutorial with Examples

Spacing Utility
Examples

1. Spacing Utility

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Spacing Utility is the part of Bootstrap. It gives classes to help users set up the margin, padding values for elements. These classes are friendly with devices with different screen size.

Basically, these classes are named as the following format:

{property}{sides}-{size}
{property}{sides}-{breakpoint}-{size}

Of which:

{property} và {size} is mandatory value.
{sides} và {breakpoint} is non-mandatory value.

{property}:

{property} has "m" or "p" values.

{property}	Description
m	This is abbreviation of "Margin", related to setting up of margin for elements.
p	This is abbreviation of "Padding", related to setting up of padding for elements.

{sides}:

{sides}	Description
t	This stands for "Top", related to setting up margin-top or padding-top
b	This stands for "Bottom", related to setting up margin-bottom or padding-bottom
l	This stands for "Left", related to setting up margin-left or padding-left
r	This stands for "Right", related to setting up margin-right or padding-right
x	Refer to X axis (Horizontal), related to setting up margin-left & margin-right or padding-left & padding-right.
y	Refer to Y axis (Vertical), related to setting up margin-top & margin-bottom or padding-top & padding-bottom.

{size}:

{size}	Description
0	Set the value for padding or margin to 0.
1	Set the value for padding or margin to *0.25 $spacer**.
2	Set the value for padding or margin to *0.5 $spacer**.
3	Set the value for padding or margin to *1 $spacer**.
4	Set the value for padding or margin to *1.5 $spacer**.
5	Set the value for padding or margin to *3 $spacer**.
auto	Set the value formargin to auto.

$spacer is a value defined in the SASS of Bootstrap. This value may be different for the equipment with different screen width.

{breakpoint}

{breakpoint}	Description
sm	Works when the width of parent element is >= 567px.
md	Works when the width of parent element is >= 768px.
lg	Works when the width of parent element is >= 992px.
xl	Works when the width of parent element is >= 1200px.

2. Examples

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margin-example.html

<!DOCTYPE html>
<html>
   <head>
      <meta charset="utf-8">
      <title>Margin Example</title>
      <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css">
   </head>
   <body>

      <div class="container-fluid border border-primary mt-5">
         <div class="border border-danger mt-5 mr-4 mb-4 ml-auto" style="width:100px;">
           Div
         </div>
      </div>

      <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
      <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
      <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
   </body>

</html>

paddingexample

<div class="border border-danger pt-5 pr-4 pb-4 pl-5" style="width:300px;">
   Bootstrap is a free front-end framework for faster and easier web development.
   Bootstrap includes HTML and CSS based design templates for typography ...
</div>

If an element is set up margin automatically on the left and on the right. It will appear in the center of father element horizontally.

center-example

<div class="container-fluid border border-primary mt-5">

   <div class="mx-auto border border-danger" style="width:100px;">
      Center DIV
   </div>

</div>

Responsive:

<div class="container-fluid border border-primary">

   <div class="border border-danger m-1 m-sm-5" style="width:100px;">
      .m-1 .m-sm-5
   </div>

</div>

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Bootstrap Spacing Utilities Tutorial with Examples

1. Spacing Utility

{property}{sides}-{size}

{property}{sides}-{breakpoint}-{size}

2. Examples

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