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| layout | title | description | group | toc |
|---|---|---|---|---|
| docs | Customization options | Customize Bootstrap 4 with our new built-in Sass variables for global style preferences for easy theming and component changes. | getting-started | true |
Customizing variables
Every Sass variable in Bootstrap 4 includes the !default flag, meaning you can override that default value in your own Sass even after that original variable's been defined. Copy and paste variables as needed, modify the values, remove the !default flag, and recompile.
For example, to change out the background-color and color for the <body>, you'd do the following:
{% highlight scss %} $body-bg: $gray-dark; $body-color: $gray-light; {% endhighlight %}
Do the same for any variable you need to override, including the global options listed below.
Global options
Customize Bootstrap 4 with our built-in custom variables file and easily toggle global CSS preferences with new $enable-* Sass variables. Override a variable's value and recompile with npm run test as needed.
You can find and customize these variables for key global options in our _variables.scss file.
| Variable | Values | Description |
|---|---|---|
$spacer |
1rem (default), or any value > 0 |
Specifies the default spacer value to programmatically generate our spacer utilities. |
$enable-rounded |
true (default) or false |
Enables predefined border-radius styles on various components. |
$enable-shadows |
true or false (default) |
Enables predefined box-shadow styles on various components. |
$enable-gradients |
true or false (default) |
Enables predefined gradients via background-image styles on various components. |
$enable-transitions |
true (default) or false |
Enables predefined transitions on various components. |
$enable-hover-media-query |
true or false (default) |
... |
$enable-grid-classes |
true (default) or false |
Enables the generation of CSS classes for the grid system (e.g., .container, .row, .col-md-1, etc.). |
$enable-print-styles |
true (default) or false |
Enables styles for optimizing printing. |