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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

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About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

!
Insecure Resource

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CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <section class="special" data-scrollax-parent="true">
  <div class="cover" data-scrollax="properties: { translateY: '30%' }"><img src="//iprodev.github.io/Scrollax.js/images/photo-1429277005502-eed8e872fe52.jpg" /></div>
  <div class="content">
    <div class="text centralize">
      <div data-scrollax="properties: { 'translateY': '150%', 'opacity': 1.5 }">
        <header class="major">
          <h2>Aliquam fringilla, lectus vitae malesuada.</h2>
        </header>
        <p>Sed nunc dui, laoreet et fringilla nec, aliquam sit amet dolor. Cras faucibus, justo vel ullamcorper accumsan, elit nibh tempus dui, eget tincidunt ante dolor eget nisi. Morbi at viverra eros. Nulla sed dui dui. Ut gravida euismod dolor vitae.</p>
      </div>
    </div>
  </div>
</section>
<section class="special" data-scrollax-parent="true">
  <div class="cover" data-scrollax="properties: { translateY: '30%' }"><img src="//iprodev.github.io/Scrollax.js/images/OnRKhvlFQ2uJNSx5O3cc_DSC00560.jpg" /></div>
  <div class="content">
    <div class="text centralize">
      <div data-scrollax="properties: { 'translateY': '150%', 'opacity': 1.5 }">
        <header class="major">
          <h2>Lorem ipsum dolor sit amet.</h2>
        </header>
        <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent est turpis, aliquam quis molestie in, imperdiet a urna. Maecenas vel condimentum enim, eget tempor lectus. Vivamus ut nisi in enim vestibulum aliquam at quis nunc. Suspendisse ac erat eu.</p>
      </div>
    </div>
  </div>
</section>
<section class="special" data-scrollax-parent="true">
  <div class="cover" data-scrollax="properties: { translateY: '30%' }"><img src="//iprodev.github.io/Scrollax.js/images/photo-1429277158984-614d155e0017.jpg" /></div>
  <div class="content">
    <div class="text centralize">
      <div data-scrollax="properties: { 'translateY': '150%', 'opacity': 1.5 }">
        <header class="major">
          <h2>Sed hendrerit lobortis dui. Donec.</h2>
        </header>
        <p>Duis efficitur ex non lectus congue, laoreet condimentum neque ullamcorper. Phasellus mauris turpis, convallis vel posuere sed, imperdiet commodo ligula. In eget consectetur velit. Sed eget arcu eget risus semper placerat. Aliquam aliquet erat augue, non scelerisque augue rhoncus vitae.</p>
      </div>
    </div>
  </div>
</section>
<section class="special" data-scrollax-parent="true">
  <div class="cover" data-scrollax="properties: { translateY: '30%' }"><img src="//iprodev.github.io/Scrollax.js/images/photo-1429277096327-11ee3b761c93.jpg" /></div>
  <div class="content">
    <div class="text centralize">
      <div data-scrollax="properties: { 'translateY': '150%', 'opacity': 1.5 }">
        <header class="major">
          <h2>Vestibulum elementum purus quis justo.</h2>
        </header>
        <p>Quisque interdum convallis lacus ut auctor. Nunc venenatis elit non nulla gravida, congue fringilla justo ultrices. Morbi ut dolor fringilla, mollis ante imperdiet, euismod sem. Sed faucibus auctor ligula vel accumsan. Integer ultrices feugiat faucibus. Suspendisse hendrerit urna vulputate, accumsan.</p>
      </div>
    </div>
  </div>
</section>
<a class='iprodev' href='http://iprodev.com' target='_blank'>iprodev.com</a>
!

CSS 

              
                ::-webkit-scrollbar {
  width: 13px; // to adjust width
}

::-webkit-scrollbar-track {
  background: #FFFFFF;
  -webkit-box-shadow: inset 1px 1px 2px #E0E0E0;
  border: 1px solid #D8D8D8; //color of the track of scroll bar
}

::-webkit-scrollbar-thumb {
  background: #646464;
  -webkit-box-shadow: inset 1px 1px 2px rgba(155, 155, 155, 0.4);
}

::-webkit-scrollbar-thumb:hover {
  background: #aaaaaa;
}

::-webkit-scrollbar-thumb:active {
  background: #888;
  -webkit-box-shadow: inset 1px 1px 2px rgba(0, 0, 0, 0.3);
}

html {
  width: 100%;
  height: 100%;
}

body {
  background: #f5f5f5;
  color: #666;
}

section {
  position: relative;
  display: block;
  width: 100%;
  height: 500px;
  height: 100vh;
  overflow: hidden;
  color: #BBB;
}

section h2 {
  color: #FFF;
}

section .cover {
  position: absolute;
  display: block;
  width: 100%;
  height: 100%;
  z-index: 1;
}

section .cover img {
  position: absolute;
  display: block;
  min-width: 100%;
  min-height: 100%;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

section .content {
  position: absolute;
  display: block;
  background: rgba(0, 0, 0, 0.7);
  width: 100%;
  height: 100%;
  z-index: 2;
}

section .text {
  width: 50%;
}

.centralize {
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translateZ(0px) translateX(-50%) translateY(-50%);
  transform: translateX(-50%) translateY(-50%);
}

@media screen and (max-width: 1000px) {
  section .text {
    width: 90%;
  }
}
a.iprodev {
	line-height: normal;
	font-family: Varela Round, sans-serif;
	font-weight: 600;
	text-decoration: none;
	font-size: 13px;
	color: #A7AAAE;
	position: fixed;
	left: 20px;
	bottom: 20px;
	border: 1px solid #A7AAAE;
	padding: 12px 20px 10px;
	border-radius: 50px;
	transition: all .1s ease-in-out;
	text-transform: uppercase;
  z-index: 100;
}

a.iprodev:hover {
	background: #A7AAAE;
	color: white;
}
!

JS 

              
                jQuery(document).ready(function($){
  'use strict';

  $.Scrollax();
});
!
999px

Console