// Option A: Include all of Bootstrap
@import "../node_modules/bootstrap/scss/bootstrap";
+
+// Add custom code after this
```
```scss
@import "../node_modules/bootstrap/scss/variables";
@import "../node_modules/bootstrap/scss/mixins";
+// Include custom variable default overrides here
+
// Optional
@import "../node_modules/bootstrap/scss/root";
@import "../node_modules/bootstrap/scss/reboot";
You will find the complete list of Bootstrap's variables in `scss/_variables.scss`. Some variables are set to `null`, these variables don't output the property unless they are overridden in your configuration.
-Variable overrides within the same Sass file can come before or after the default variables. However, when overriding across Sass files, your overrides must come before you import Bootstrap's Sass files.
+Variable overrides must come after our functions, variables, and mixins are imported, but before the rest of the imports.
Here's an example that changes the `background-color` and `color` for the `<body>` when importing and compiling Bootstrap via npm:
```scss
+// Required
+@import "../node_modules/bootstrap/scss/functions";
+@import "../node_modules/bootstrap/scss/variables";
+@import "../node_modules/bootstrap/scss/mixins";
+
// Your variable overrides
$body-bg: #000;
$body-color: #111;
// Bootstrap and its default variables
-@import "../node_modules/bootstrap/scss/bootstrap";
+
+// Optional
+@import "../node_modules/bootstrap/scss/root";
+@import "../node_modules/bootstrap/scss/reboot";
+@import "../node_modules/bootstrap/scss/type";
+// etc
```
Repeat as necessary for any variable in Bootstrap, including the global options below.
+{{< callout info >}}
+{{< partial "callout-info-npm-starter.md" >}}
+{{< /callout >}}
+
## Maps and loops
Bootstrap includes a handful of Sass maps, key value pairs that make it easier to generate families of related CSS. We use Sass maps for our colors, grid breakpoints, and more. Just like Sass variables, all Sass maps include the `!default` flag and can be overridden and extended.
@import "../node_modules/bootstrap/scss/root";
@import "../node_modules/bootstrap/scss/reboot";
@import "../node_modules/bootstrap/scss/type";
-...
+// etc
```
## Required keys