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Table of Contents
  • Getting started with TailwindCSS
  • A demo
  • Creating a form using TailwindCSS

An Introduction to TailwindCSS

<Project #2: Calculator Part 1Introduction>

Previously, we introduced a new way to organize your CSS code. Instead of creating a single class that applies all the styles like this:

css
1.card {
2  width: 400px;
3  height: fit-content;
4
5  display: flex;
6  flex-direction: column;
7  gap: 10px;
8
9  border: solid 2px;
10  border-radius: 10px;
11
12  margin: 10px;
13  padding: 10px;
14}

We create small, single-purpose classes. Making sure each class only does one thing.

css
1.flex {
2  display: flex;
3}
4
5.flex-row {
6  flex-direction: row;
7}
8
9.flex-col {
10  flex-direction: column;
11}
12
13.gap {
14  gap: 10px;
15}
16
17. . .

This way, the classes can be reused anywhere. And this method also avoids unnecessary repetitions.

Getting started with TailwindCSS

This is basically what a CSS framework is, a set of predefined utility classes that you can use directly in your project. Using a framework will save you the trouble of designing these classes yourself, and can greatly accelerate your development process.

One of the most popular CSS framework is TailwindCSS. To get started, you can load the script through its CDN like this:

html
1<!DOCTYPE html>
2<html>
3  <head>
4    <meta charset="UTF-8" />
5    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
6    <script src="https://cdn.tailwindcss.com"></script>
7  </head>
8  <body>
9    <h1 class="text-3xl font-bold underline">Hello world!</h1>
10  </body>
11</html>

You should note that this method is designed for development purpose only. It is not recommended in a production environment. To learn how to set up TailwindCSS for production, please refer to the official documentation.

A demo

Next, let's build something with TailwindCSS to see how it works:

html
1<!DOCTYPE html>
2<html lang="en">
3  <head>
4    <meta charset="UTF-8" />
5    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
6    <title>Document</title>
7    <script src="https://cdn.tailwindcss.com"></script>
8  </head>
9
10  <body>
11    <div class="flex flex-row gap-4">
12      <div class="flex flex-col gap-4 border-2 border-black rounded-md p-4">
13        <img
14          class="w-full rounded-md"
15          src="https://images.unsplash.com/photo-1706820642350-805585dd2adc?crop=entropy&cs=srgb&fm=jpg&ixid=M3wzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE3MDkxOTI3MDd8&ixlib=rb-4.0.3&q=85"
16          alt="image" />
17        <h2 class="font-mono text-xl font-bold">
18          Lorem ipsum dolor sit amet consectetur adipisicing elit
19        </h2>
20        <p class="font-mono text-base">
21          Lorem ipsum dolor sit amet consectetur adipisicing elit. Provident
22          delectus quibusdam porro quos officiis possimus molestias ullam
23          officia consectetur expedita sed labore similique, excepturi voluptas
24          fugiat ex error quod? Beatae.
25        </p>
26      </div>
27
28      . . .
29    </div>
30  </body>
31</html>

This is the same blog post grid we've created before, and we are able to recreate it without writing a single line of CSS.

blog post grid

Creating a form using TailwindCSS

To wrap up this lesson, we are going to create a web form using the TailwindCSS framework.

html
1<!DOCTYPE html>
2<html lang="en">
3  <head>
4    <meta charset="UTF-8" />
5    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
6    <title>Document</title>
7    <script src="https://cdn.tailwindcss.com"></script>
8  </head>
9
10  <body class="bg-gray-900">
11    <form
12      action="#"
13      method="post"
14      class="flex flex-col gap-4 max-w-sm rounded-md shadow-xl mx-auto my-20 px-8 py-12 font-serif bg-gray-100">
15      <h2 class="text-center text-2xl capitalize underline mb-4">
16        Please fill out the form
17      </h2>
18      <div>
19        <label for="name" class="hidden">Name</label>
20        <input
21          type="text"
22          id="name"
23          name="name"
24          required
25          placeholder="Name"
26          class="w-full px-4 py-2 border-2 rounded-md focus:ring focus:ring-offset-2 focus:ring-violet-500 focus:outline-violet-200" />
27      </div>
28
29      <div>
30        <label for="email" class="hidden">Email</label>
31        <input
32          type="email"
33          id="email"
34          name="email"
35          required
36          placeholder="Email"
37          class="w-full px-4 py-2 border-2 rounded-md focus:ring focus:ring-offset-2 focus:ring-violet-500 focus:outline-violet-200" />
38      </div>
39
40      <div>
41        <label for="message" class="hidden">Message</label>
42        <textarea
43          id="message"
44          name="message"
45          rows="4"
46          required
47          placeholder="Message"
48          class="w-full px-4 py-2 border-2 rounded-md focus:ring focus:ring-offset-2 focus:ring-violet-500 focus:outline-violet-200"></textarea>
49      </div>
50
51      <input
52        type="submit"
53        value="Submit"
54        class="border-2 border-violet-500 bg-violet-500 hover:border-violet-700 hover:bg-violet-700 focus:border-violet-900 focus:bg-violet-900 focus:outline-none focus:ring focus:ring-violet-200 transition-all duration-150 text-gray-100 font-sans uppercase font-bold rounded-md px-4 py-2" />
55    </form>
56  </body>
57</html>

Tailwind form

There are a few things we need to talk about here. First of all, focus: and hover: are pseudo-selectors. focus: activates when the form element is in focus, and hover: activates when the cursor hovers over the element.

px-* defines horizontal padding and py-* defines vertical padding. p-* define padding in all directions. m-* specifies margins in the same manner.

*-<color>-<number> is how colors are specified in TailwindCSS. You can find the color pallet in the linked article.

<Project #2: Calculator Part 1Introduction>

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Course Outline
Introduction+
  • 1.WebDev Fundamentals
HTML & CSS+
  • 1.Preparations
  • 2.HTML Elements
  • 3.Query Selectors
  • 4.Colors
  • 5.Typography
  • 6.Text Customization
  • 7.Text Spacing & Alignment
  • 8.Functions & At Rules
  • 9.Links
  • 10.Lists
  • 11.Tables
  • 12.Forms
  • 13.Media Files
  • 14.The Box Model
  • 15.Display Types
  • 16.Overflow
  • 17.Object Fit
  • 18.Aspect Ratio
  • 19.Float
  • 20.Position
  • 21.The Column Layout
  • 22.The Grid Layout
  • 23.The Flexbox Layout
  • 24.Justify & Align
  • 25.Z index
  • 26.Visibility & Opacity
  • 27.Box Shadow
  • 28.Backgrounds
  • 29.Gradient
  • 30.Blend Modes
  • 31.Filters
  • 32.Transforms
  • 33.Transitions
  • 34.Animations
  • 35.Cursor & Scroll Behavior
  • 36.Responsive Design
  • 37.Responsive Media & Text
  • 38.Responsive Layout
  • 39.Best Practices
  • 40.Project #1: Recreating YouTube
  • 41.Project #2: Calculator Part 1
TailwindCSS+
  • 1.Introducing TailwindCSS
JavaScript+
  • 1.Introduction
  • 2.Setting Up a Dev Environment
  • 3.Basic Syntax
  • 4.Data Types
  • 5.Numbers & BigInt
  • 6.Strings
  • 7.Boolean Values
  • 8.Undefined & Null
  • 9.Type Conversion
  • 10.Arrays
  • 11.Objects
  • 12.Maps & Sets
  • 13.If Statements
  • 14.Switch Statements
  • 15.While Loops
  • 16.For Loops
  • 17.Functions
  • 18.Variables & Scope
  • 19.Rest Parameter & Spread Syntax
  • 20.Pure Functions
  • 21.Higher Order Functions
  • 22.Recursion
  • 23.Methods
  • 24.Constructor Functions
  • 25.Getters & Setters
  • 26.Prototypes
  • 27.The Class Notation
  • 28.Class Inheritance
  • 29.Static Properties
  • 30.Private Properties
  • 31.Object Oriented Programming
  • 32.Error Handling
  • 33.Asynchronous Programming
  • 34.Promise
  • 35.Async & Wait
  • 36.JavaScript Modules
  • 37.The DOM Tree
  • 38.Manipulation the DOM
  • 39.Event Handling
  • 40.Some Common Events
  • 41.Canvas
  • 42.Project #3: Image Slider
  • 43.Project #4: Drawing Board
  • 44.Working with Date
  • 45.The Math Object
  • 46.JSON
  • 47.Regular Expressions
  • 48.Define Patterns with Regex
  • 49.Regex Related Methods
  • 50.Project #5: Calculator Part 2
Express.js+
  • 1.Network & HTTP
  • 2.A Basic Web App
  • 3.Express.js
  • 4.Model Layer
  • 5.View Layer
  • 6.Controller Layer
  • 7.Form Handling
  • 8.Uploading Files
  • 9.Project #6: Blog
  • 10.Loading Static Files
  • 11.ORM Integration
  • 12.Adding Relations
  • 13.Middleware
  • 14.Browser Data Storage
  • 15.User Authentication
  • 16.REST API
  • 17.Best Practices
  • 18.Going to Production
React.js+
  • 1.Fundamentals
  • 2.JSX
  • 3.Conditional Rendering
  • 4.List Rendering
  • 5.Components
  • 6.Props
  • 7.Adding Styles
  • 8.Event Handling
  • 9.Introducing State
  • 10.State Management
  • 11.Form Handling
  • 12.Reducer
  • 13.Context
  • 14.Refs
  • 15.Effects
  • 16.Hooks
  • 17.Rules of React
  • 18.Project #7: Todo List
  • 19.Project #8: Weather App
  • 20.Project #9: Blog
  • 21.React.js Optimization
Next.js+
  • 1.Next.js Basics
  • 2.Routing
  • 3.Pages & Layout
  • 4.Server vs. Client Components
  • 5.API Routes
  • 6.Server Actions
  • 7.Database Integration
  • 8.Data Fetching
  • 9.Error Handling
  • 10.Middleware
  • 11.Links, Navigation & Redirection
  • 12.Images
  • 13.Scripts
  • 14.Fonts
  • 15.Lazy Loading
  • 16.Caching
  • 17.Loading UI
  • 18.Project #10: SaaS
  • 19.User Authentication
  • 20.Magic Link
  • 21.Custom Emails
  • 22.Protecting Routes
  • 23.OAuth Providers
  • 24.Dashboard
  • 25.Role Based Access Control
  • 26.Payment Integration
  • 27.Pricing Page
  • 28.Stripe Checkout
  • 29.Payment Webhook
Miscellaneous+
  • 1.Optimize Your Web App
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