Forms are an essential part of web applications, allowing users to input and submit data. In this chapter, we will explore how to handle form values in a React application styled with Tailwind CSS. We will cover setting up a form, managing form state with React, and applying Tailwind CSS classes for styling.

Setting Up Tailwind CSS in React Project using Vite

If you haven't already created a React project, you can do so using Create React App:

Step-1 Create React Project Using Vite

npm create vite@latest

Step-2 Install depencies like this

cd go_to_project_folder

npm install

Step-3 Setup and install Tailwind CSS

npm install -D tailwindcss postcss autoprefixer

npx tailwindcss init -p

Step-4 Open tailwind.config.js file and paste these code

/** @type {import('tailwindcss').Config} */

export default {

content: [

"./index.html",

"./src/**/*.{js,ts,jsx,tsx}",

],

theme: {

extend: {},

},

plugins: [],

}

Step-5 Open index.css and paste it

@tailwind base;

@tailwind components;

@tailwind utilities;

Now, you can test tailwind add any class Value related to tailwind in your HTML tags like h1,p, div

Designing a Signup Form using Tailwind CSS also Handling Form Data

import { useState } from 'react';

import 'animate.css';

const App = ()=>{

const model = {

firstname: '',

lastname: '',

email: '',

password: '',

username: '',

mobile: ''

}

const [form, setForm] = useState(model)

const getFormValue = (e)=>{

const input = e.target

const value = input.value

const key = input.name

setForm({

...form,

[key]: value

})

}

const signup = (e)=>{

e.preventDefault()

console.log(form)

}

return (

<h1 className='text-2xl font-bold mb-4 text-center'>CodingOtt Signup Form</h1>

<label className='text-lg font-semibold'>Firstname</label>

<input

name="firstname"

type="text"

placeholder="Enter first name here"

className='border p-2 rounded border-gray-300'

onChange={getFormValue}

/>

{/* <small className='text-rose-600 font-semibold text-sm'>This field is required</small> */}

</div>

<label className='text-lg font-semibold'>Lastname</label>

<input

name="lastname"

type="text"

placeholder="Enter last name here"

className='border p-2 rounded border-gray-300'

onChange={getFormValue}

/>

{/* <small className='text-rose-600 font-semibold text-sm'>This field is required</small> */}

</div>

<label className='text-lg font-semibold'>Email</label>

<input

name="email"

type="email"

placeholder="email@gmail.com"

className='border p-2 rounded border-gray-300'

onChange={getFormValue}

/>

{/* <small className='text-rose-600 font-semibold text-sm'>This field is required</small> */}

</div>

<label className='text-lg font-semibold'>Password</label>

<input

name="password"

type="password"

placeholder="*************"

className='border p-2 rounded border-gray-300'

onChange={getFormValue}

/>

{/* <small className='text-rose-600 font-semibold text-sm'>This field is required</small> */}

</div>

<label className='text-lg font-semibold'>Username</label>

<input

name="username"

type="text"

placeholder="@Username"

className='border p-2 rounded border-gray-300'

onChange={getFormValue}

/>

{/* <small className='text-rose-600 font-semibold text-sm'>This field is required</small> */}

</div>

<label className='text-lg font-semibold'>Mobile no</label>

<input

name="mobile"

type="number"

placeholder="9472395194"

className='border p-2 rounded border-gray-300'

onChange={getFormValue}

/>

{/* <small className='text-rose-600 font-semibold text-sm'>This field is required</small> */}

</div>

<button className='border-0 bg-indigo-600 text-white rounded py-2 font-semibold'>Submit</button>

</form>

</div>

</div>

)

}

export default App

List of useful Tailwind CSS class values

Width

w-1 : increase this 1 according to your need
w-fit : Arrange width according to content
w-full : full width 100%
w-[50px] : Add Square to set custom width value
w-6/12 : 50% width

Height

h-full - 100% height
h-screen - 100vh height
min-h-screen - minimum height 100vh

Padding

p-1 : set all side padding you can increase this 1 according to your need
px-1 : set left and right side padding
py-1 : set top and bottom side padding
pt-1 : set top side padding
pb-1 : set bottom side padding

Margin

m-1 : set all side margin you can increase this 1 according to your need
mx-1 : set left and right side margin
my-1 : set top and bottom side margin
mt-1 : set top side margin
mb-1 : set bottom side margin

Shadow

shadow
shadow-sm
shadow-md
shadow-lg
shadow-xl
shadow-2xl

Border Radius

rounded
rounded-md
rounded-lg
rounded-full - For making box circular

Border

border - to setup default border
border-1 - for border width
border-red-500 - change border color

Display

flex
block
hidden
justify-center justify-between justify-around justify-evenly
items-center

Position

absolute
relative
fixed
sticky
top-0
left-0
z-10 - for z-index

Ch-66 useReducer hooks example and use case in react

Notes and Source Code