Ryan Lanciaux

Posted on Jan 2, 2020 • Originally published at ryanlanciaux.com

Tailwind with React

#webdev #react #javascript

Tailwind is a CSS library in a similar space to things like Bootstrap or Bulma. Tailwind is different that instead of providing CSS for full components, it provides low-level utility classes. What this means is that instead of using class=“button” or “card” or something else, you’ll define your own button by composing Tailwind’s utility classes.

For an example of this, we’ll look at some HTML of a card created with Bootstrap and then a card created with Tailwind.

Bootstrap - See example on CodePen

<!-- from the Bootstrap documentation
     https://getbootstrap.com/docs/4.0/components/card/
-->
<div class="card" style="width: 18rem;">
  <img
    class="card-img-top"
    src="https://www.fillmurray.com/300/300"
    alt="Card image cap"
  />
  <div class="card-body">
    <h5 class="card-title">Card title</h5>
    <p class="card-text">
      Some quick example text to build on the card title and make up the bulk of
      the card's content.
    </p>
    <a href="#" class="btn btn-primary">Go somewhere</a>
  </div>
</div>

Tailwind - See example on CodePen

<div class="w-64 rounded overflow-hidden shadow-lg">
  <img
    class="w-full"
    src="https://www.fillmurray.com/300/300"
    alt="Bill Murray Placeholder"
  />
  <div class="px-6 py-4">
    <div class="font-bold text-xl mb-2">Card Title</div>
    <p class="text-gray-700 text-base">
      Some quick example text
    </p>
  </div>
  <div class="px-6 py-4">
    <button class="bg-blue-800 py-2 px-2 rounded text-white">
      Go Somewhere
    </button>
  </div>
</div>

You may have noticed that the Tailwind card has more verbose CSS class properties. However, we can now adjust how our component looks without changing CSS directly.

For example, if we wanted to give the card a background, we could apply a bg-color class to our opening div: <div class="w-64 rounded overflow-hidden shadow-lg bg-indigo-300">...</div>. The bg-indigo-300 class is one example of a Tailwind Utility Class.

With React

We’re going to start with a default Create React Project.

> npx create-react-app react-tailwind-example

Next, we'll add a couple dependencies

> yarn add tailwindcss tailwind.macro@next @emotion/core @emotion/styled

If you prefer styled-components, you could include that instead of @emotion/core @emotion/styled

Tailwind is the Tailwind library.
Tailwind.Macro is a Babel plugin macro for using babel-plugin-tailwind-components package without additional configuration. Please see kentcdodds/babel-plugin-macros if you're interested in learning more about Babel plugin macros.
@emotion/core | @emotion/styled - The css-in-js library we're using in this example.

We’re ready to start writing some example code that uses these libraries. We'll replace App.js with the following code:

import React from "react";
import styled from "@emotion/styled";
import tw from "tailwind.macro";

const Button = styled.button`
  ${tw`bg-gray-300 text-yellow-900 px-8 m-8 rounded h-20 text-3xl`}
`;

export default function() {
  return <Button>Testing</Button>;
}

Example output:

The styled component, Button, is using the Tailwind Macro tw to apply utility classes for things like a background color, rounded corners, font-size, etc. Combining Tailwind with Emotion or Styled-Components allows us to build flexible components quickly.

Using Tailwind CSS with my React applications has been extremely useful for me. I hope you find it helpful also.

Top comments (13)

Mike DiGioia • Jan 2 '20 • Edited

You can simplify it a bit more with the following.

const Button = styled.button`
  ${tw`bg-gray-300 text-yellow-900 px-8 m-8 rounded h-20 text-3xl`}
`;

const Button = tw.button`bg-gray-300 text-yellow-900 px-8 m-8 rounded h-20 text-3xl`;

You do this by updating the babel macro config with something like

{
  tailwind: {
     config: tailwindConfig, // if you added a config file
     styled: '@emotion/styled',
  }
}

Steve Coffman • Jan 12 '20

Hey Ryan,
Very nice! I'm not familiar with Tailwind.Macro or babel-plugin-tailwind-components. Would they provide the same cut-what-is-not-needed benefits as PostCSS + Purgecss, or would you consider using both?

Ryan Lanciaux • Jan 14 '20

That's a great question and I'm not entirely sure right now. I tried to find a bit more info on it but to no avail. I have a project where I'm using this and next time I'm in the code, I may try to do a production build and see if it's doing any of the purging type operations.

If it's not, it'd likely be good to do that still :D

Ryan Lanciaux • Jan 2 '20

Very nice! Thanks

Derek Shanks • Jan 5 '20

Ryan! Thank you very much for your demonstration. You managed to sell Tailwind far better than anyone else has.

I’m a CSS specialist, my primary focus is designing efficient style workflows. I love styled-components.

I’ve been wanting to bring Tailwind on for awhile because there are several huge benefits as the UI styling is predictable and very nice to work with.

I absolutely cringed at the utility classes overtaking the template. React can get busy all on its own without Tailwinds class pollution.

The styled-component method is a game changer and now I have a new style workflow to integrate. Exciting!!! 🙌🙌

Ryan Lanciaux • Jan 6 '20

Thanks a ton for checking it out - so glad it was helpful! :D

I had a very similar reaction when looking at Tailwind initially. "This looks nice but I fear what it'll turn my components into" 😀

Alex Barashkov • Jan 2 '20 • Edited

Thank you for the article Ryan. I still can't understand tailwind approach that looks very similar to me with writing styles inline. So there are no difference between writing for example div class="overflow-hidden" and style="overflow:hidden".

Ryan Lanciaux • Jan 2 '20

Thank you. This is totally understandable that it looks similar to inline styling on occasion. I prefer the Tailwind approach using "micro CSS classes" opposed to inline styling. It shines when you have more properties you're applying especially on more than one page. If we wanted to apply a background, rounded corners, font-size, etc. it would be more likeclass="bg-indigo-300 rounded text-sm" (etc.).

Since these are classes and not inline, if we ever needed to update what font was used, anything using the Utility class would be styled the same. Tailwind's theme docs for a little more on this.

Julian Li • Jan 2 '20 • Edited

I would say the main benefit of tailwind is that it provides you with a consistent design system which scales well. you don't need to think about what is degree of green I need to use as background and what is degree of green I need to use as the text color. simply use the pre-defined class like text-green-100 or text-green-500 without thinking about the hex color. It also works the same way for scaling the font size, without thinking about what specific font size used for heading or paragraph. Simply try text-lg, text-base to see how it fits your design.

Laurent Lemaire • Feb 17 '20 • Edited

Thanks for this good article!

How would you create the tailwind string parameter programmatically?
If let's say I want to add tailwind classes dynamically how would this work?

I tried adding my tailwind classes to a string and the pass it to the macro as a parameter but it doesn't seem to work.

  let twStr = ``
  twStr += (padding) ? 'pt-16 pb-16' : ''
  twStr += (altBackground) ? 'bg-gray-100' : ''

  const SSection = styled.section`
    ${tw`
      ${twStr}
    `}
    width: 2000px
  `
  return <SSection>{children}</SSection>

This works if rather than using the$(twStr) I use "pt-16 pb-16" (as a string a not as a variable).

Any hint?

Rodrigo Saling • Feb 15 '20

Hello Ryan! Thanks for the tutorial!

I was using Tailwind with the PostCSS + Autoprefixer method and I thought that changing to styled-components would be an easy solution for when you want to disable a button or an input field.

But the main thing is that the Base style, they call it "Preflight", doesn't work anymore. Before I had this huge CSS file that was imported to my App, and the margins, paddings, and fonts were all working fine.

Now I have no clue on how to load these base styles. Do you have any idea on how to to that?

Thanks!