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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.

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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.

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About Vendor Prefixing

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <header>
  <h1>Cool Articles</h1>
</header>
<div class="band">
  <div class="item-1">
    <a href="https://design.tutsplus.com/articles/international-artist-feature-malaysia--cms-26852" class="card">
      <div class="thumb" style="background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/210284/flex-1.jpg);"></div>
      <article>
        <h1>International Artist Feature: Malaysia</h1>
        <span>Mary Winkler</span>
      </article>
    </a>
  </div>
  <div class="item-2">
    <a href="https://webdesign.tutsplus.com/articles/how-to-conduct-remote-usability-testing--cms-27045" class="card">
      <div class="thumb" style="background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/210284/users-2.png);"></div>
      <article>
        <h1>How to Conduct Remote Usability Testing</h1>
        <span>Harry Brignull</span>
      </article>
    </a>
  </div>
  <div class="item-3">
    <a href="https://design.tutsplus.com/articles/envato-tuts-community-challenge-created-by-you-july-edition--cms-26724" class="card">
      <div class="thumb" style="background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/210284/flex-5.jpg);"></div>
      <article>
        <h1>Created by You, July Edition</h1>
        <p>Welcome to our monthly feature of fantastic tutorial results created by you, the Envato Tuts+ community! </p>
        <span>Melody Nieves</span>
      </article>
    </a>
  </div>
  <div class="item-4">
    <a href="https://webdesign.tutsplus.com/tutorials/how-to-code-a-scrolling-alien-lander-website--cms-26826" class="card">
      <div class="thumb" style="background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/210284/landing.png);"></div>
      <article>
        <h1>How to Code a Scrolling “Alien Lander” Website</h1>
        <p>We’ll be putting things together so that as you scroll down from the top of the page you’ll see an “Alien Lander” making its way to touch down.</p>
        <span>Kezz Bracey</span>
      </article>
    </a>
  </div>
  <div class="item-5">
    <a href="https://design.tutsplus.com/tutorials/stranger-things-inspired-text-effect--cms-27139" class="card">
      <div class="thumb" style="background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/210284/strange.jpg);"></div>
      <article>
        <h1>How to Create a “Stranger Things” Text Effect in Adobe Photoshop</h1>
        <span>Rose</span>
      </article>
    </a>
  </div>
  <div class="item-6">
    <a href="https://photography.tutsplus.com/articles/5-inspirational-business-portraits-and-how-to-make-your-own--cms-27338" class="card">
      <div class="thumb" style="background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/210284/flor.jpg);"></div>
      <article>
        <h1>5 Inspirational Business Portraits and How to Make Your Own</h1>

        <span>Marie Gardiner</span>
      </article>
    </a>
  </div>
  <div class="item-7">
    <a href="https://webdesign.tutsplus.com/articles/notes-from-behind-the-firewall-the-state-of-web-design-in-china--cms-22281" class="card">
      <div class="thumb" style="background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/210284/china.png);"></div>
      <article>
        <h1>Notes From Behind the Firewall: The State of Web Design in China</h1>
        <span>Kendra Schaefer</span>
      </article>
    </a>
  </div>
</div>
!

CSS 

              
                html {
  background: #f5f7f8;
  font-family: system-ui;
  -webkit-font-smoothing: antialiased;
  padding: 20px 0;
}

header {
  width: 90%;
  max-width: 1240px;
  margin: 0 auto;
}
.band {
  width: 90%;
  max-width: 1240px;
  margin: 0 auto;
  
  display: grid;
  
  grid-template-columns: 1fr;
  grid-template-rows: auto;
  grid-gap: 20px;
  
  @media (min-width: 30em) {
    grid-template-columns: 1fr 1fr;
  }
  
  @media (min-width: 60em) {
    grid-template-columns: repeat(4, 1fr);
  }
}

.card {
  background: white;
  text-decoration: none;
  color: #444;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  min-height: 100%;
  
  // sets up hover state
  position: relative;
  top: 0;
  transition: all .1s ease-in;
    
  &:hover {
    top: -2px;
    box-shadow: 0 4px 5px rgba(0,0,0,0.2);
  }
  
  article {
    padding: 20px;
    flex: 1;
    
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  
  h1 {
    font-size: 20px;
    margin: 0;
    color: #333;
  }
  
  p {
    flex: 1;
    line-height: 1.4;
  }
  
  span {
    font-size: 12px;
    font-weight: bold;
    color: #999;
    text-transform: uppercase;
    letter-spacing: .05em;
    margin: 2em 0 0 0;
  }
  
  .thumb {
    padding-bottom: 60%;
    background-size: cover;
    background-position: center center;
  }
}

.item-1 {
  @media (min-width: 60em) {
    grid-column: 1 / span 2;
    
    h1 {
      font-size: 24px;
    }
  }
}
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JS
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999px

Console