* remove the $enable-flex variable option * remove bootstrap-flex.css dist file and it's grunt task * remove the separate flex css file for docs; it's all the same now * remove flexbox docs (porting some to the main grid docs in next commit) * clean up few grid docs bits to simplify copy, start to mention flexbox * port relevant flexbox-grid.md content to grid.md - clean up mixins - update how it works section - bring over sizing and alignment sections * remove the $enable-flex from the options.md page * update lead paragraph to mention flexbox * update migration to mention loss of ie9 support * remove mention of flexbox dist file * clarify IE support * making a note * remove flexbox variant mentions from component docs - updates docs for media object, navs, list group, and cards to consolidate docs - no more need to callout flexbox variants since it's now the default * remove $enable-flex if/else from sass files * remove flex dist files * update scss lint property order to account for flex properties * linting * change to numberless classes for autosizing, wrap in highlighting div * bump gruntfile and postcss to ie10 * redo intro sections * rearrange * phew, redo hella grid docs - rearrange all the things - consolidate some bits * remove reference to flexbox mode * more border action for demo * Make some changes to the .card's in .card-deck's to ensure footers align to the bottom
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layout | title | description | group |
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docs | Customization options | Customize Bootstrap with Sass variables, easily toggling global preferences with a quick recompile. | getting-started |
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 the included Gruntfile as needed.
Customizing variables
Bootstrap 4 ships with a _custom.scss
file for easy overriding of default variables in /scss/_variables.scss
. Copy and paste relevant lines from there into the _custom.scss
file, modify the values, and recompile your Sass to change our default values. Be sure to remove the !default
flag from override values.
For example, to change out the background-color
and color
for the <body>
, you'd do the following:
{% highlight scss %}
// Bootstrap overrides
//
// Copy variables from _variables.scss
to this file to override default values
// without modifying source files.
$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
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 for 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 transition s 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.). |