```scss
$breakpoints: (
- small: rem-calc(0),
- medium: rem-calc(640),
- large: rem-calc(1024),
- xlarge: rem-calc(1200),
- xxlarge: rem-calc(1440),
+ small: 0px,
+ medium: 640px,
+ large: 1024px,
+ xlarge: 1200px,
+ xxlarge: 1440px,
);
```
+<div class="primary callout">
+ <p>Even though the above values are in pixels, they're converted to ems at the end for use in media queries.</p>
+</div>
+
Changing the widths of any of the breakpoints is as easy as changing the pixel values in this map. Note that here there are two extra breakpoints: `xlarge` and `xxlarge`. We don't use these for any components, and also don't output any CSS classes that use them by default.
You can change that by modifying the `$breakpoint-classes` variable in your settings file. This is a list of breakpoint names. Adding or removing names from the list will change the CSS class output. It looks like this by default: