Pen Settings

HTML

About HTML Preprocessors

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.

Learn more · Versions

Adding Classes

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.

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

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

CSS

About CSS Preprocessors

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

Learn more · Versions

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

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

Powered by Algolia
About External Resources

You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

You can also link to another Pen here (use the .css URL Extension) and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, use the appropriate URL Extension and we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

Learn more

+ add another resource

JavaScript

About JavaScript Preprocessors

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

Learn more · Versions

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

Powered by Algolia
About External Resources

You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

Learn more

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Powered by Algolia
About Packages

Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.

All packages are different, so refer to their docs for how they work.

If you're using React / ReactDOM, make sure to turn on Babel for the JSX processing.

Behavior

Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML 

              
                <img class='logo' src='http://matthew-morton.com/amazon-logo.png' width='200px' height='auto' />
<br><br>
<p>
  Thanks for your interest in Amazon. The Advertising Design Technology team is a lean group of designer-developers who appreciate intuitive, streamlined user experiences; beautiful visual design; elegant interaction animations; and simple, easy-to-read code. We stay on top of technology trends while keeping in mind limitations that may prevent us from deploying to our many devices and platforms. Millions of Amazon customers around the world interact with the experiences we build.
</p>
<h2>Exercise 2: Product Carousel</h2>
<p>
  To complete this exercise, first create a free CodePen account (if you don’t already have one) and fork this pen. Then design and develop a simple product carousel with the JSON file and sprite sheet below. The widget should support product images, product titles, reviews, star ratings, prime eligibility, price and anything else you'd like to add. Things we’re looking for include:
  <ul>
    <li>Simple, intuitive user experience</li>
    <li>Fun, interactive user interface</li>
    <li>Beautiful, polished visual design</li>
    <li>Elegant, easy-to-read code</li>
  </ul>
To put it another way, <em>wow us with something you’re proud to show off</em>.
</p>
<p>
  Spend as much time as needed; however, the expectation is that the exercise should only require a few hours to complete. Please do not use any external libraries as we'd like to see what you can create from scratch. You can assume the carousel widget will be viewed only in modern browsers. Once completed, enter your name in the space provided and include links to your online portfolio and any recent work you’d like to share.<br>
  JSON: <a href="https://d3jlxzdxc80cmp.cloudfront.net/adt/hiring/exercise2/echo_products.json">echo_products.json</a><br>
  Sprite sheet: <a href="https://d3jlxzdxc80cmp.cloudfront.net/adt/hiring/exercise2/sprite.png">sprite.png</a>
</p>
<hr>
<div class='widget'>
  <div id="carousel-title">Today's Deals</div>
    <div id="carousel-wrapper">
      <div id="carousel-widget">
        <div id="carousel-container"></div>
      </div>
      <div id="left-arrow" class="carousel-arrow left-arrow"></div>
      <div id="right-arrow" class="carousel-arrow right-arrow"></div>
      <div id="loading-veil">
          <div class="lds-ring"><div></div><div></div><div></div><div></div></div>
      </div>
    </div>
</div>
<h3>Matthew Morton</h3>
<p class='links'>
 
</p>
<hr>
<h2>Thank You!</h2>
<p>
  Thank you for your participation. For more information, please visit <a href='https://www.amazon.jobs/en/teams/axt' target='_blank'>amazon.jobs/en/teams/axt</a>.
</p>
!

CSS 

              
                @font-face {
    font-family: 'Amazon Ember';
    src: url(https://d3jlxzdxc80cmp.cloudfront.net/adt/hiring/fonts/amazonember.woff2) format("woff2"),url(https://d3jlxzdxc80cmp.cloudfront.net/adt/hiring/fonts/amazonember.woff) format("woff")
}
html,
body {
  position: relative;
  margin: 0px auto;
	background-color: #333333;
  color: #FFFFFF;
  -webkit-font-smoothing: antialiased;
  font-smoothing: antialiased;
  font-family: "Amazon Ember";
}

body {
  max-width: 1000px;
  font-size: 16px;
  line-height: 1.5;
}

a,
a:visited {
  color: #99CCFF;
  text-decoration: none;
}

a:hover {
  color: #ff9900;
}

.logo {
  display: block;
  margin: 0px auto;
  margin-top: 30px;
}

h2, h3 {
  font-weight: 500;
  letter-spacing: 1px;
  text-align: center;
}

em {
  font-weight: 500;
  font-size: 1.25em;
  animation: glow 1s ease-in-out alternate infinite;
}

hr {
  border-top-color: rgba(0,0,0,0.5);
  border-bottom-color: rgba(255,255,255,0.1);
  border-left: none;
  border-right: none;
}

.widget {
  position: relative;
  margin: 0px auto;
  margin-top: 20px;
  margin-bottom: 0px;
  width: 100%;
  height: 342px;
  box-shadow: inset 0px 0px 0px 1px rgba(0,0,0,0.15), inset 0px 1px 2px rgba(0,0,0,0.25), 0px 1px 0px rgba(255,255,255,0.1);
  border-radius: 5px;
  background-color: #2A292A;
}

.links {
  text-align: center;
}

@keyframes glow {
  from {
    color: #FFFFFF;
  } to {
    color: #FFAA00;
  }
}

/* EXAMPLE 
------------------*/
@import 'variables';
@import 'mixins';
@import 'adlp';

html,body{
  background-color: #333;
  -webkit-font-smoothing: antialiased;
  -moz-font-smoothing: antialiased;
  -ms-font-smoothing: antialiased;
  font-smoothing: antialiased;
}

@font-face {
    font-family: 'Amazon Ember';
    src: url(https://m.media-amazon.com/images/G/01/AUIClients/AmazonUIBaseCSS-amazonember_rg-cc7ebaa05a2cd3b02c0929ac0475a44ab30b7efa._V2_.woff2) format("woff2"),url(https://m.media-amazon.com/images/G/01/AUIClients/AmazonUIBaseCSS-amazonember_rg-8a9db402d8966ae93717c348b9ab0bd08703a7a7._V2_.woff) format("woff")
}
#carousel-title{
  width: 98%;
  margin: 1%;
  margin-bottom: 0px;
  font-size: 24px;
}
h2{
  color: #FFF;
  display: inline-block;
}
a{
  font-size: 18px;
  color:#48a3c6;
}
#carousel-wrapper{
  position: absolute;
  width: 98%;
  height: 280px;
  margin: 1%;
  border-radius: 4px;
  overflow: hidden;
}
#carousel-widget{
  position: relative;
  height: 280px;
  background-color: #FFF;
  font-family: "Amazon Ember";
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  -webkit-box-shadow: 0px 0px 6px 0px rgba(0,0,0,1);
  -moz-box-shadow: 0px 0px 6px 0px rgba(0,0,0,1);
  box-shadow: 0px 0px 6px 0px rgba(0,0,0,1);
  margin: 0 40px;
}
#carousel-container{
  position: absolute;
  width: max-content;
  height:280px;
}
.carousel-arrow{
  position: absolute;
  top: 0;
  width:40px;
  height: 280px;
  background-color: #FFF;

  -webkit-box-shadow: 0px 0px 15px 0px rgba(0,0,0,0.15);
  -moz-box-shadow: 0px 0px 15px 0px rgba(0,0,0,0.15);
  box-shadow: 0px 0px 15px 0px rgba(0,0,0,0.15);
  font-size: 4rem;
  line-height: 16rem;
  user-select:none;
  color: #ccc;
  text-align:center;
  background-image: url("https://ksomedia.s3.amazonaws.com/lcdtest/mortm/ADT-Coding-Exercise/carousel-arrows.png");
  background-size: cover;
}
.left-arrow{
  left: 0;
  border-right:1px solid #CCC;
  background-position: 0 0;
}
.left-arrow:hover{
  background-position: -40px 0;
  cursor: pointer;
}
.right-arrow{
  right: 0;
  border-left:1px solid #CCC;
  background-position: 200px 0;
}
.right-arrow:hover{
  background-position: 240px 0;
  cursor: pointer;
}
.off{
  display: none;
}
#carousel-widget::-webkit-scrollbar {
  -webkit-appearance: none;
}
#carousel-widget::-webkit-scrollbar:horizontal {
  height: 12px;
}
#carousel-widget::-webkit-scrollbar-thumb {
  border-radius: 8px;
  border: 1px solid #FFF; /* should match background, can't be transparent */
  background-color: #58C8FA;
  background-color: #ccc;
  padding: 4px;
}
#carousel-widget::-webkit-scrollbar-track { 
  background-color: #F2F2F2; 
  border-radius: 4px;
} 
/* PRODUCT STYLES
-----------------------------*/
ul.products{
  margin: 0;
  padding: 0;
}
.product_cell{
  width: 240px;
  height: 280px;
  display: inline-block;
  padding: 0px 20px;
  transition-property: all;
  transition-duration: 0.25s;
}
.product_cell:hover{
  background-color: rgba(113, 113, 113, 0.08);
  cursor: pointer;
} 
.product_image{
  margin: auto;
  text-align: center;
  mix-blend-mode: multiply;
  user-select:none;
}
.asin_image{
  margin-top: 20px;
  max-height: 140px;
  min-height: 140px;
  max-width: 140px;
  object-fit:contain;
  vertical-align: middle;
}
.product_details{
  position: relative;
  top:20px;
}
.product_title{
  font-size: 16px;
  color: #000;
  margin-bottom: 6px;
}
.product_price{ 
  font-size: 16px;
  color: #000;
  display: inline-block;
}
.product_price::first-letter{ 
    font-size: 12px;
    vertical-align: text-top;
}
.rating_count{
  position: relative;
  bottom: 2px;
  color: #0066c0;
  font-size: 13px;
}
.stars{
  font-size: 16px;
  width: 80px;
  height: 18px;
  word-wrap: normal;
  overflow: hidden;
  color: #FF9900;
  letter-spacing: 1px;
  pointer-events: none;
  float: left;
  margin-right: 6px;
  background-image: url("https://d3jlxzdxc80cmp.cloudfront.net/adt/hiring/exercise2/sprite.png");
  background-size: 400px 900px;
  background-repeat: no-repeat;
}
.star_count_5{
  background-position: -5px -368px;
}
.star_count_4{
  background-position: -21px -368px;
}
.star_count_3{
  background-position: -36px -368px;
}
.prime{
  position: relative;
  top: 5px;
  left: 6px;
  width: 100px;
  height: 20px;
  display: inline-block;
  background-size: 400px 900px;
  background-repeat: no-repeat;
}
.prime_true{
  background-image: url("https://d3jlxzdxc80cmp.cloudfront.net/adt/hiring/exercise2/sprite.png");
  background-position: -5px -490px;
}
/* PRODUCT ANIMATIONS
---------------------------*/
.product_image{
  cursor: pointer;
  image-rendering: auto;
  
  -webkit-transform: translate3d(0,0,0);
  -moz-transform: translate3d(0,0,0);
  -ms-transform: translate3d(0,0,0);
  transform: translate3d(0,0,0);
  
  -webkit-transition-property: transform;
  -webkit-transition-duration: 0.15s;
  -webkit-transition-timing-function: ease-in-out;
  
  -moz-transition-property: transform;
  -moz-transition-duration: 0.15s;
  -moz-transition-timing-function: ease-in-out;
  
  -ms-transition-property: transform;
  -ms-transition-duration: 0.15s;
  -ms-transition-timing-function: ease-in-out;
  
  transition-property: transform;
  transition-duration: 0.15s;
  transition-timing-function: ease-in-out;
  
  -webkit-animation: bounce 0.3s 1 ease-in-out;
  -webkit-animation-delay: 0.05s;
  
  -moz-animation: bounce 0.3s 1 ease-in-out;
  -moz-animation-delay: 0.05s;
  
  -ms-animation: bounce 0.3s 1 ease-in-out;
  -ms-animation-delay: 0.05s;
  
  animation: bounce 0.3s 1 ease-in-out;
  animation-delay: 0.05s;
}

.product_cell:hover > .product_image {
  -webkit-transform: scale3d(1.05,1.05,1);
  -moz-transform: scale3d(1.05,1.05,1);
  -ms-transform: scale3d(1.05,1.05,1);
  transform: scale3d(1.05,1.05,1);
  image-rendering: auto;
}
/* LOADING - USE ECHO BRANDING
---------------------------*/
#loading-veil{
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  margin: auto;
  background-color: rgba(255,255,255,1);
  z-index: 1;
  border-radius: 4px;
  opacity: 1;
  pointer-events:all;
  transition-property: all;
  transition-duration: 0.5s;
}
.fade-out {
 opacity: 0 !important;
 pointer-events:none !important;
}
.lds-ring {
  position: absolute;
  width: 64px;
  height: 64px;
  top: 50%;
  left:50%;
  margin-left: -32px;
  margin-top: -52px;
}
.lds-ring div {
  box-sizing: border-box;
  display: block;
  position: absolute;
  width: 51px;
  height: 51px;
  margin: 6px;
  border: 3px solid #58C8FA;
  border-radius: 50%;
  animation: lds-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
  border-color: #58C8FA transparent transparent transparent;
}
.lds-ring div:nth-child(1) {
  animation-delay: -0.45s;
}
.lds-ring div:nth-child(2) {
  animation-delay: -0.3s;
}
.lds-ring div:nth-child(3) {
  animation-delay: -0.15s;
}
@keyframes lds-ring {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
/* ERROR RESPONSE
---------------------------*/
#error-message{
  position: absolute;
  text-align: center;
  width: 100%;
  top: 58%;
  font-family: "Amazon Ember";
  font-size: 16px;
  color: #000;
}
!

JS 

              
                const $carouselWidget = document.getElementById("carousel-widget");
const $carousel = document.getElementById("carousel-container");
const $loader = document.getElementById("loading-veil");
const $rightArrow = document.getElementById("right-arrow");
const $leftArrow = document.getElementById("left-arrow");
const productsJSON = 'https://d3jlxzdxc80cmp.cloudfront.net/adt/hiring/exercise2/echo_products.json'

const init = () => {

  fetch(productsJSON)
  .then(function(response) {
    return response.json();
  })
  .catch(error => $loader.innerHTML += "<div id='error-message'>Sorry, something went wrong.</div>")
  .then(function(response) {
    buildCarousel(response);
  });
};

const buildCarousel = (response) => {

  const products = response.asins;

  let displayProducts = "";
  let i;

  displayProducts += "<ul class='products'>";
  
  products.forEach( (product) => {
    
    displayProducts += `

    <li class='product_cell' data-link='${product.detailPageUrl}'>
      <div class='product_image'> <img class='asin_image' src='${product.imageHires}'/> </div>
        
      <div class='product_details'>  

        <div class='product_title'>${product.title.substring(0, 20)}...</div>
        <div class='asin_details'>
          <div class='stars star_count_${product.rating}'  id='stars'></div>
          <div class='rating_count'>${product.ratingCount}</div>
          <div class='product_price'>${product.price}</div>
          <div class='prime prime_${product.isPrimeEligible}'></div>
        </div>

      </div>

    </li>`;

  });

  displayProducts += "</ul>";

  $carousel.innerHTML = displayProducts;

  const product_links = document.querySelectorAll(".product_cell");
  let j;
  for (j = 0; j < product_links.length; j++) {
    product_links[j].addEventListener('click', function() {
      let linkOut = this.getAttribute('data-link');
      window.open("http://amazon.com" + linkOut ); 
    });
  }
  //REMOVE LOADER TO DISPLAY RESULTS
  setTimeout(() => { $loader.classList.add("fade-out"); }, 250);

}
// LEFT AND RIGHT ARROWS
$leftArrow.addEventListener('click', () => {
  $carouselWidget.scrollBy({ top: 0, left: -1 * $carouselWidget.offsetWidth, behavior: 'smooth' });
});
$rightArrow.addEventListener('click', () => {
  $carouselWidget.scrollBy({ top: 0, left: $carouselWidget.offsetWidth, behavior: 'smooth' });
});

init();
!
999px

Console