JSFiddle - React, Tailwind, and code Playground

by Qwerty_Wasd

HTML

<!--  -->
<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8">
		<link rel="stylesheet" href="style.css">
		<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
		<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
		<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
		<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
		<meta name="viewport" content="width=device-width, initial-scale=1">
		<title>Главная страница</title>


	</head>
	<body>
		<div class="container">
			<div class="row d-flex justify-content-center">
				<div class="col-sm-4 d-none d-sm-block ">
					<img src="images/head.png" alt="башка" class="header_head">
				</div>
				<div class="col-sm-8">
					<img src="images/dai.png" alt="диалог" class="header_dia">
				</div>
			</div>
			<div class="row d-flex justify-content-center">
				<div class="col-md-offset-5 col-md-2 d-none d-md-block arr_num1">
					<img src="images/arr.png" alt="" class="arr" style="width: 100px; height: 100px;">
				</div>
			</div>
			<div class="row d-flex justify-content-center">
				<div class="col-md-12 d-flex justify-content-center">
					<img src="images/box.png" alt="Диалоговое окно для задания!" class="img_q">
				</div>
			</div>
			<div class="row d-flex justify-content-center">
				<div class="col-xs-10">
					<form action="" id="form_main">

						<input id="userName" type="name" placeholder="Имя:" class="input_main col-xs-10">
						<input id="userVK" type="VK" placeholder="Ссылка на вк:" class="input_main col-xs-10"><br><br>
						<!--Та самая кнопка!!!-->
						<button type="submit" value="Войти" class="button_form col-xs-10" id="submit_button" onclick="joined();return false;">Войти!</button>
					</form>
				</div>
			</div>
		</div>
		<script>
			function joined(e){
				// set_cookie("username",userName,2021,1,20);
				//...