React js example. error 404 page example with search input

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1. First, we need fresh reactjs setup, and for that, we need to run below commands into out terminal, and also we should have latest node version installed on our system:

npx create-react-app my-awesome-project

cd my-awesome-project

npm start

2. Now we need to run below commands into our project terminal to get bootstrap and related modules into our reactjs application:

npm install [email protected] --save

npm start //For start project again

3. Finally for the main output, we need to add below code into our my-awesome-project/src/App.js file or if you have fresh setup then you can replace my-awesome-project/src/App.js file code with below code:

import React from 'react';
import './App.css';
import 'bootstrap/dist/css/bootstrap.min.css';


function App() {
  
	return (
		<div>
			<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" />
<section class="error-page section">
	<div class="container">
		<div class="row">
			<div class="col-lg-6 offset-lg-3 col-12">
				
				<div class="error-inner">
					<h1>404<span>Oop's  sorry we can't find that page!</span></h1>
					<p>Aenean eget sollicitudin lorem, et pretium felis. Nullam euismod diam libero, sed dapibus leo laoreet ut. Suspendisse potenti. Phasellus urna lacus</p>
					<form class="search-form">
						<input placeholder="Search from Here" type="text"/>
						<button class="btn" type="submit"><i class="fa fa-search"></i></button>
					</form>
				</div>
				
			</div>
		</div>
	</div>
</section>
		</div>
	);
}
export default App;

4. Now we need to add below code into our my-awesome-project/src/App.css file :

body{margin-top:20px;}
.error-page {
    text-align: center;
	background: #fff;
	border-top: 1px solid #eee;
}
.error-page .error-inner {
	display: inline-block;
}
.error-page .error-inner h1 {
	font-size: 140px;
	text-shadow: 3px 5px 2px #3333;
	color: #006DFE;
	font-weight: 700;
}
.error-page .error-inner h1 span {
	display: block;
	font-size: 25px;
	color: #333;
	font-weight: 600;
	text-shadow: none;
}
.error-page .error-inner p {
	padding: 20px 15px;
}
.error-page .search-form {
	width: 100%;
	position: relative;
}
.error-page .search-form input {
	width: 400px;
	height: 50px;
	padding: 0px 78px 0 30px;
	border: none;
	background: #f6f6f6;
	border-radius: 5px;
	display: inline-block;
	margin-right: 10px;
	font-weight:400;
	font-size:14px;
}
.error-page .search-form input:hover{
	padding-left:35px;
}
.error-page .search-form .btn {
	width: 80px;
	height: 50px;
	border-radius: 5px;
	cursor: pointer;
	background: #006DFE;
	display: inline-block;
	position: relative;
	top: -2px;
}
.error-page .search-form .btn i{
	font-size:16px;
}
.error-page .search-form .btn:hover{
	background:#333;
}