How to add Tailwind CSS to HTML?
Tags: html, css, tutorial, tailwindcss
Published: 2020-10-22 09:03:00

Adding Tailwind CSS to HTML can be done using more methods, such as using a CDN, or the recommended method by getting Tailwind via a package manager and using PostCSS to process the configuration file.

## Include Tailwind CSS via CDN

If you want to quickly get started using Tailwind CSS and play around with the utility-first classes, just include the following CDN link inside the `<head>` tag of your HTML template:

```
<link href="https://unpkg.com/[email protected]^1.0/dist/tailwind.min.css" rel="stylesheet">
```

After you’ve done that, you should be able to use the classes from Tailwind CSS. Check out our latest [Tailwind CSS tutorial](https://themesberg.com/blog/tailwind-css/tutorial) where we show you can build a responsive navigation bar and hero section with a sign up form using the utility-first classes from Tailwind CSS.

## Install Tailwind CSS via NPM and process the configuration file using PostCSS

Although it requires a bit more setup and it requires further knowledge of the terminal and JavaScript, it is most definitely the best way to make use of all of the features that Tailwind CSS can provide.

First of all, you need to make sure that you have Node and NPM installed on your machine. If you do, run the following command in the root directory of your project to initialize the NPM configuration file:

```
npm init
```

You will be asked some questions regarding the project title, description, versioning and so on. The `package.json` file will mostly hold information about your project and the dependencies that you need, such as Tailwind CSS.

Afterward, install Tailwind CSS using the following command:

```
npm install tailwindcss --save
```

This will add Tailwind CSS as a project dependency, and also install the library files inside the node\_modules folder. The `--save` tag ensures that the library is added to the `package.json` file.

### Create a CSS file and include the Tailwind CSS directives

Now that you have Tailwind CSS installed locally, create a `main.css` file and add the following code to inject the Tailwind CSS code:

```
@tailwind base;

@tailwind components;

@tailwind utilities;
```

These directives will be swapped by the actual Tailwind CSS classes when using PostCSS later in this guide.

### Setup the Tailwind configuration file

This is an important step to set up a configuration file for Tailwind CSS so that you can later easily customize the classes by modifying and adding new colors, fonts, sizings, shadows and so on.

This is a huge advantage compared to using only the CDN of the framework, because using the configuration file you can actually change the framework based on your needs, whereas if you only use the CDN you would need to write extra classes, overriding the default Tailwind CSS classes.

Run the following command in your terminal to generate a `tailwind.config.js` file:

```
npx tailwindcss init
```

By running this command, a new configuration file called `tailwind.config.js` will be generated with the following code:

```
// tailwind.config.js
module.exports = {
    future: {},
    purge: [],
    theme: {
    extend: {},
    },
    variants: {},
    plugins: [],
}
```

### Processing Tailwind CSS

The last step to include Tailwind CSS into HTML using the recommended PostCSS method is to add the following to plugins inside the configuration file and then run the command that will process your configuration file and the main.css file:

```
module.exports = {
    plugins: [
    // ...
    require('tailwindcss'),
    require('autoprefixer'),
    // ...
    ]
}
```

And run the following command in your terminal to process your files:

```
npx tailwindcss build main.css -o output.css
```

This will generate a new CSS file called output.css which you need to include in your HTML file. All you need to do now is to add the following code in your HTML template:

```
<link href=”./output.css” rel=”stylesheet”>
```

Congratulations! Now you should have Tailwind CSS included in your HTML using the recommended method. If you want to learn more about how to use Tailwind CSS you can read our latest [Tailwind CSS tutorial](https://themesberg.com/blog/tailwind-css/tutorial) where we cover many aspects of the framework.