The theme's `assets/css/main.css` file is built from several SCSS partials located in [`_sass/`](https://github.com/mmistakes/minimal-mistakes/tree/master/_sass) and is structured as follows:
To mimic the look of type set in a printed book or manuscript you may want to enable paragraph indention. When `$paragraph-indent` is set to `true` indents are added to each sibling and the margin below each paragraph is removed.
By default the theme uses [system fonts](https://medium.com/designing-medium/system-shock-6b1dc6d6596f#.rb81vgn7i) for all of the font stacks (serif, sans-serif, and monospace). This is done in part to provide a clean base for you to build off of and to improve performance since we aren't loading any custom webfonts by default.
Sans-serif fonts have been used for most of the type, with serifs reserved for captions. If you wish to change this you'll need to poke around the various `SCSS` partials and modify `font-family` declarations.
**ProTip:** To use webfonts from services like [Adobe TypeKit](https://typekit.com/) or [Google Fonts](https://www.google.com/fonts) simply update the font stacks and then add their scripts to `_includes/head/custom.html`.
{: .notice--info}
#### Typography from Older Versions
Not a fan of the refreshed typography of the theme and want to revert back an older version? Easy enough.
**1.** Add this Google Fonts script to [`_includes/head/custom.html`](https://github.com/mmistakes/minimal-mistakes/blob/master/_includes/head/custom.html):
Wherever possible type scale variables have been used instead of writing out fixed sizes. This makes updating much easier by changing values in one file.
Type sizes are set in ems to proportional scale as the screen size changes. Large headlines that look great on desktop monitors will shrink ever so slightly as to not be too big on mobile devices. To adjust this hierarchy simply edit the default values:
```scss
/* type scale */
$type-size-1 : 2.441em; // ~39.056px
$type-size-2 : 1.953em; // ~31.248px
$type-size-3 : 1.563em; // ~25.008px
$type-size-4 : 1.25em; // ~20px
$type-size-5 : 1em; // ~16px
$type-size-6 : 0.75em; // ~12px
$type-size-7 : 0.6875em; // ~11px
$type-size-8 : 0.625em; // ~10px
```
### Colors
Change the mood of your site by altering a few color variables. `$body-color`, `$background-color`, `$text-color`, `$link-color`, and `$masthead-link-color` will have the most affect when changed.
To make customizing the colors used in code highlighted blocks, a base of sixteen colors ([Base16](http://chriskempson.com/projects/base16/)) have been used.
Code block colors can easily be changed by overriding any of the following color variables:
Probably won't need to touch these, but they're there if you need to. Width variables are used with the [`@include breakpoint()`](http://breakpoint-sass.com/) mixin to adapt the design of certain elements.
And `$susy` is used for setting [the grid](http://susy.oddbird.net/) the theme uses. Uncommenting the lines under `debug` can be useful if you want to show the columns when adjusting the layout.
<figure>
<imgsrc="{{ '/assets/images/mm-susy-grid-overlay.jpg' | absolute_url }}"alt="Susy grid overlay for debugging">
You can disable either the fade-in intro animation, element transition animations, or both by overriding the corresponding variables. For example if you wanted to disable all animations you could include the following lines:
