Unlock the Power of Stylelint: Take Your CSS to the Next Level

What is Stylelint?

Stylelint is a versatile tool that understands the latest CSS syntax and parses CSS-like syntaxes such as SCSS, Sass, and Less. It can extract embedded styles from HTML, Markdown, CSS-in-JS objects, and template literals, making it an essential tool for any developer.

Getting Started with Stylelint

To integrate Stylelint into your workflow, start by installing it along with the stylelint-config-standard, which enables a core set of rules based on common stylistic conventions. Create a configuration file in the root of your project, and you’re ready to run Stylelint on the command line.

npm install stylelint stylelint-config-standard

Create a .stylelintrc file in the root of your project with the following content:

{
  "extends": "stylelint-config-standard"
}

Beyond the Basics: Advanced Stylelint Features

While Stylelint is an excellent tool for catching errors, it can do so much more. With plugins like stylelint-order, you can automatically sort properties in an order of your choosing, making your CSS code easier to scan and comprehend.

/* example.css */
.color {
  color: red;
  background-color: blue;
}

With the stylelint-order plugin, the properties will be sorted alphabetically:

/* example.css */
.color {
  background-color: blue;
  color: red;
}

The stylelint-a11y plugin helps make accessibility a key part of your dev process, while the stylelint-color-format plugin normalizes all colors to RGB(A) or HSL(A).

Improve Code Quality with Stylelint

Stylelint can also help you transition to newer recommended features like logical properties, which offer a way to describe the layout of web pages in a universal vocabulary that’s unambiguous across different languages.

/* example.css */
.container {
  margin-inline-start: 10px;
  margin-inline-end: 20px;
}

Additionally, plugins like stylelint-declaration-block-no-ignored-properties can catch easy-to-make mistakes, such as properties being ignored when used in conjunction with other property-value combinations.

Common Ways to Use Stylelint

So, how can you incorporate Stylelint into your workflow? Here are a few common ways:

  • Use Stylelint and Prettier to lint and format your CSS
  • Use VS Code with the Stylelint extension to provide squiggly underlines for errors
  • Add the Stylelint plugin to your webpack configuration to lint styles for each build
  • Integrate Stylelint into your Vue CLI configuration

By incorporating Stylelint into your workflow, you can save yourself headaches and maintain a high level of code quality. With its advanced features and plugins, Stylelint is an essential tool for any developer looking to take their CSS to the next level.

By Alex Rivers

I write hands-on guides to web development and programming: JavaScript and React patterns, Python scripting, CSS layout and the developer tools that tie it all together. I like explanations that start with working code and end with knowing why it works. If a post saves you an afternoon of debugging, it did its job.