Update styling-css.md (#20679)

file type formatting

docs/docs/recipes/styling-css.md

@@ -211,9 +211,9 @@ Notice that the file extension is `.module.css` instead of `.css`, which tells G
 
 Sass is an extension of CSS that gives you more advanced features like nested rules, variables, mixins, and more.
 
-Sass has 2 syntaxes. The most commonly used syntax is "SCSS", and is a superset of CSS. That means all valid CSS syntax, is valid SCSS syntax. SCSS files use the extension .scss
+Sass has 2 syntaxes. The most commonly used syntax is "SCSS", and is a superset of CSS. That means all valid CSS syntax, is valid SCSS syntax. SCSS files use the extension `.scss`
 
-Sass will compile .scss and .sass files to .css files for you, so you can write your stylesheets with more advanced features.
+Sass will compile `.scss` and `.sass` files to `.css` files for you, so you can write your stylesheets with more advanced features.
 
 ### Prerequisites
 
@@ -257,7 +257,7 @@ import "./styles.scss"
 import "./styles.sass"
 ```
 
-_Note: You can use Sass/SCSS files as modules too, like mentioned in the previous recipe about CSS modules, with the difference that instead of .css the extensions have to be .scss or .sass_
+_Note: You can use Sass/SCSS files as modules too, like mentioned in the previous recipe about CSS modules, with the difference that instead of `.css` the extensions have to be `.scss` or `.sass_`
 
 ### Additional resources