Tailwindmarkup~30 mins

CSS variables with Tailwind - Mini Project: Build & Apply

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Using CSS Variables with Tailwind CSS

📖 Scenario: You are building a simple webpage that uses custom colors defined with CSS variables. You want to use Tailwind CSS utility classes that refer to these CSS variables for consistent theming.

🎯 Goal: Create a webpage with a heading and a button. Define CSS variables for --main-color and --accent-color in a :root selector. Use Tailwind CSS classes that apply these colors by referencing the CSS variables.

📋 What You'll Learn

Define CSS variables --main-color and --accent-color in the :root selector with exact colors #2563eb and #f43f5e respectively.

Create an h1 heading with the text Welcome to My Site that uses the --main-color as its text color via Tailwind CSS.

Create a button with the text Click Me that uses the --accent-color as its background color via Tailwind CSS.

Use Tailwind CSS utility classes with text-[var(--main-color)] and bg-[var(--accent-color)] syntax to apply the CSS variables.

Include responsive design so the button text size is larger on screens wider than 640px.

💡 Why This Matters

🌍 Real World

Using CSS variables with Tailwind allows you to create consistent themes that are easy to update and maintain across a website.

💼 Career

Many web development jobs require knowledge of modern CSS techniques and utility-first frameworks like Tailwind to build scalable and maintainable user interfaces.

Progress0 / 4 steps

Create the HTML skeleton and define CSS variables

Write the HTML5 skeleton with lang="en", charset="UTF-8", and viewport meta tags. Inside a <style> tag in the <head>, define CSS variables --main-color with value #2563eb and --accent-color with value #f43f5e inside the :root selector.

Tailwind




  
  
  CSS Variables with Tailwind
  
    /* Define CSS variables here */

Need a hint?

Remember to put the CSS variables inside a :root selector within a <style> tag in the <head>.

Add heading and button elements

Inside the <body>, add an h1 element with the exact text Welcome to My Site and a button element with the exact text Click Me.

Tailwind




  
  
  CSS Variables with Tailwind
  
    :root {
      --main-color: #2563eb;
      --accent-color: #f43f5e;
    }

Need a hint?

Make sure the h1 and button have exactly the specified text.

Apply Tailwind CSS classes using CSS variables

Add Tailwind CSS utility classes to the h1 and button. For the h1, add the class text-[var(--main-color)] to set its text color. For the button, add the class bg-[var(--accent-color)] to set its background color. Also add text-white to the button for readable text and px-4 py-2 rounded for padding and rounded corners.

Tailwind




  
  
  CSS Variables with Tailwind
  
    :root {
      --main-color: #2563eb;
      --accent-color: #f43f5e;
    }
  


  Welcome to My Site
  Click Me

Need a hint?

Use the exact Tailwind classes with square brackets to reference the CSS variables.

Make the button text larger on wider screens

Add a responsive Tailwind CSS class to the button so that its text size is text-lg on screens wider than 640px. Use the sm:text-lg class along with the existing classes.

Tailwind




  
  
  CSS Variables with Tailwind
  
    :root {
      --main-color: #2563eb;
      --accent-color: #f43f5e;
    }
  


  Welcome to My Site
  Click Me

Need a hint?

Use the sm:text-lg class to make the button text larger on small (640px+) screens.