JSFiddle - React, Tailwind, and code Playground

by lix__

HTML

<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title>FCC: Product Landing Page</title>
    <link rel="stylesheet" href="styles.css">
    <!-- Font Awesome -->
    <script src="https://kit.fontawesome.com/0991185c0b.js" crossorigin="anonymous"></script>
    <!-- Google Fonts -->
    <link href="https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,400;0,700;0,900;1,400;1,700;1,900&display=swap" rel="stylesheet">
  </head>
  <body>
    <header id="header" class="sticky">
      <a href="#"><img id="header-img" class="logo" src="https://s3.amazonaws.com/freecodecamp/original_trombones.png" alt="logo"></a>
      <nav id="nav-bar">
        <ul>
          <li><a class="nav-link" href="#features"></a>Features</li>
          <li><a class="nav-link" href="#how-it-works"></a>How It Works</li>
          <li><a class="nav-link" href="#pricing"></a>Pricing</li>
        </ul>
      </nav>
    </header>
    <main>
      <aside>
        <h2 id="title">Handcrafted, home-made masterpieces</h2>
        <form id="form" action="https://www.freecodecamp.com/email-submit" method="post">
          <input id="email" type="email" name="email" placeholder="Enter your email address" required><br>
          <input id="submit" class="btn" type="submit" name="submit" value="Get started">
        </form>
      </aside>
      <div id="features" class="features-section">
        <item class="features-item">
          <i class="fas fa-3x fa-fire icon"></i>
          <h2 class="features-title">Premium Materials</h2>
          <p class="features-p">Our trombones use the shiniest brass which is sourced locally. This will increase the longevity of your purchase.</p>
        </item>
        <item class="features-item">
          <i class="fas fa-3x fa-truck icon"></i>
          <h2 class="features-title">Fast Shipping</h2>
          <p class="features-p">We make sure you recieve your trombone as soon as we have finished making it. We also provide free returns if...

CSS

/* ----- RESET CSS ----- */
/* http://meyerweb.com/eric/tools/css/reset/
   v2.0 | 20110126
   License: none (public domain)
*/

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
	display: block;
}
body {
	line-height: 1;
}
ol, ul {
	list-style: none;
}
blockquote, q {
	quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
	content: '';
	content: none;
}
table {
	border-collapse: collapse;
	border-spacing: 0;
}
/* ----- end reset css ----- */

 /* -----RESET BOX-SIZING -----  */
 * {
 	box-sizing: border-box;
 }

/* --- MOBILE VERSION --- */
body {
	font-family: 'Lato', sans-serif;
	font-weight: 400;
	background-color: #EEE;
	text-align: center;
	margin-top: 150px;
}

.sticky {
	position: fixed;
	top: 0;
	width: 100%;
	height: 130px;
	background-color: #EEE;
	background-color: rgba(238, 238, 238, 0.9);
}

.logo {
	width: 300px;
	margin: 12px 0 5px;
}

li {
	padding: 5px;
}

h2 {
	font-weight: bold;
	font-size: 1.5rem;
}

input[type=email] {
	margin: 20px;
	width: 270px;
	padding: 5px;
	font-size: 0.8rem;
	border: solid thin black;
	border-radius: 2px;
}

.btn {
	background-color: #F1C40F;
	text-transform: uppercase;
	font-weight: bold;
	font-size: 1rem;
	padding: 5px 25px;
	border: none;
	border-radius: 2px;
}

.icon {
	color: darkorange;
	visibility:...