Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

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.

+ add another resource

JavaScript

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.

+ 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.

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

              
                <div class="carousel">
  <div class="progress-bar progress-bar--primary hide-on-desktop">
    <div class="progress-bar__fill"></div>
  </div>

<header class="main-post-wrapper">
  
  <div class="slides">
    <article class="main-post main-post--active">
      <div class="main-post__image">
        <img src="https://www.formula1.com/content/dam/fom-website/manual/Misc/2019-Races/Monaco2019/McLarenMonaco19.jpg.transform/9col/image.jpg" alt="New McLaren wind tunnel 'critical' to future performance, says Tech Director Key" loading="lazy" />
      </div>
      <div class="main-post__content">
        <div class="main-post__tag-wrapper">
          <span class="main-post__tag">News</span>
        </div>
        <h1 class="main-post__title">New McLaren wind tunnel 'critical' to future performance, says Tech Director Key</h1>
        <a class="main-post__link" href="#">
              <span class="main-post__link-text">find out more</span>
              <svg
                class="main-post__link-icon main-post__link-icon--arrow"
                width="37"
                height="12"
                viewBox="0 0 37 12"
                fill="none"
                xmlns="http://www.w3.org/2000/svg"
              >
                <path
                  d="M0 6H36.0001M36.0001 6L31.0001 1M36.0001 6L31.0001 11"
                  stroke="white"
                />
              </svg>
            </a>
      </div>
    </article>
    <article class="main-post main-post--not-active">
      <div class="main-post__image">
        <img src="https://www.formula1.com/content/dam/fom-website/sutton/2019/Hungary/Saturday/1017645792-LAT-20190803-_2ST5188.jpg.transform/9col-retina/image.jpg" alt="What To Watch For in the 2019 Hungarian Grand Prix" loading="lazy" />
      </div>
      <div class="main-post__content">
        <div class="main-post__tag-wrapper">
          <span class="main-post__tag">Video</span>
        </div>
        <h1 class="main-post__title">What To Watch For in the 2019 Hungarian Grand Prix</h1>
        <a class="main-post__link" href="#">
              <svg
                class="main-post__link-icon main-post__link-icon--play-btn"
                width="30"
                height="30"
                viewBox="0 0 20 20"
                fill="none"
                xmlns="http://www.w3.org/2000/svg"
              >
                <circle
                  cx="10"
                  cy="10"
                  r="9"
                  stroke="#C20000"
                  stroke-width="2"
                />
                <path d="M14 10L8 6V14L14 10Z" fill="white" />
              </svg>
              <span class="main-post__link-text">play video</span>
            </a>
      </div>
    </article>
    <article class="main-post main-post--not-active">
      <div class="main-post__image">
        <img src="https://www.formula1.com/content/dam/fom-website/manual/Misc/2019-Races/Austria-2019/Top3Austria2019.jpg.transform/9col-retina/image.jpg" alt="Hamilton wants harder championship fight from Leclerc and
            Verstappen" loading="lazy" />
      </div>
      <div class="main-post__content">
        <div class="main-post__tag-wrapper">
          <span class="main-post__tag">News</span>
        </div>
        <h1 class="main-post__title">Hamilton wants harder championship fight from Leclerc and Verstappen
        </h1>
        <a class="main-post__link" href="#">
              <span class="main-post__link-text">find out more</span>
              <svg
                class="main-post__link-icon main-post__link-icon--arrow"
                width="37"
                height="12"
                viewBox="0 0 37 12"
                fill="none"
                xmlns="http://www.w3.org/2000/svg"
              >
                <path
                  d="M0 6H36.0001M36.0001 6L31.0001 1M36.0001 6L31.0001 11"
                  stroke="white"
                />
              </svg>
            </a>
      </div>
    </article>
  </div>
</header>

<div class="posts-wrapper hide-on-mobile">
  <article class="post post--active">
    <div class="progress-bar">
      <div class="progress-bar__fill"></div>
    </div>
    <header class="post__header">
      <span class="post__tag">News</span>
      <p class="post__published">16 August 2019</p>
    </header>
    <h2 class="post__title">New McLaren wind tunnel 'critical' to future performance, says Tech Director Key</h2>
  </article>
  <article class="post">
    <div class="progress-bar">
      <div class="progress-bar__fill"></div>
    </div>
    <header class="post__header">
      <span class="post__tag">Video</span>
      <p class="post__published">12 August 2019</p>
    </header>
    <h2 class="post__title">What To Watch For in the 2019 Hungarian Grand Prix</h2>
  </article>
  <article class="post">
    <div class="progress-bar">
      <div class="progress-bar__fill"></div>
    </div>
    <header class="post__header">
      <span class="post__tag">News</span>
      <p class="post__published">08 August 2019</p>
    </header>
    <h2 class="post__title">Hamilton wants harder championship fight from Leclerc and Verstappen
    </h2>
  </article>
</div>
</div>
              
            
!

CSS

              
                @import url("https://fonts.googleapis.com/css?family=Titillium+Web:400,700&display=swap");

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Titillium Web", sans-serif;
}

.carousel {
  min-height: 100vh;
  position: relative;
}

.progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 5px;
  width: 100%;
  &__fill {
    width: 0;
    height: inherit;
    background: #c20000;
    transition: all 0.16s;
  }
  &--primary {
    z-index: 2;
  }
}

.main-post-wrapper {
  position: absolute;
  width: 100%;
  height: 100%;
}
.slides {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.main-post {
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  &__image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    bottom: 0;
    img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
    }
    &::before {
      content: "";
      display: block;
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(#0e0d0e, 0.5);
    }
  }
  &__content {
    position: absolute;
    top: 40%;
    left: 4%;
    transform: translateY(-40%);
    color: #fff;
    width: 90%;
  }
  &__tag-wrapper {
    margin: 0;
    display: inline-flex;
    overflow: hidden;
  }
  &__tag {
    font-size: 0.95em;
    background: #c20000;
    padding: 6px 18px;
  }
  &__title {
    font-weight: 700;
    font-size: 1.95em;
    line-height: 1.25;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  }
  &__link {
    text-decoration: none;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    display: inline-flex;
    align-items: center;
  }
  &__link-text {
    font-size: 0.9em;
  }
  &__link-icon {
    &--arrow {
      margin-left: 12px;
    }
    &--play-btn {
      margin-right: 12px;
    }
  }
}

.main-post__link:hover .main-post__link-text,
.main-post__link:hover .main-post__link-icon--arrow path {
  color: #c20000;
  stroke: #c20000;
}

.main-post--active {
  top: 0;
  z-index: 1;
  transition: top 0.9s 0.4s ease-out;
}

.main-post--not-active {
  top: 100%;
  z-index: 0;
  transition: top 0.75s 2s;
}

.main-post.main-post--active .main-post__tag-wrapper {
  width: 25%;
  transition: all 0.98s 1.9s;
}
.main-post.main-post--not-active .main-post__tag-wrapper {
  width: 0;
  transition: width 0.3s 0.2s;
}

.main-post.main-post--active .main-post__title {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s 1.42s, transform 0.5s 1.4s;
}

.main-post.main-post--not-active .main-post__title {
  transform: translateY(40px);
  opacity: 0;
  transition: transform 0.2s 0.35s, opacity 0.5s 0.2s;
}

.main-post.main-post--active .main-post__link {
  opacity: 1;
  transition: opacity 0.9s 2.2s;
}

.main-post.main-post--not-active .main-post__link {
  opacity: 0;
  transition: opacity 0.5s 0.2s;
}

.posts-wrapper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: 14px;
  position: absolute;
  bottom: 0;
  max-width: 95%;
  margin: auto;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  z-index: 1;
}

.post {
  background: rgba(#0e0d0e, 0.6);
  opacity: 0.3;
  color: #fff;
  position: relative;
  padding: 16px 20px;
  transition: opacity 0.2s linear;
  &__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8em;
  }
  &__tag {
    color: #80837e;
  }
  &__title {
    font-weight: 400;
    font-size: 0.95em;
    line-height: 1.5;
  }
  &--active {
    opacity: 1;
    background: rgba(#0e0d0e, 0.75);
    pointer-events: none;
  }
  &--disabled {
    pointer-events: none;
  }
  &:hover {
    cursor: pointer;
    opacity: 1;
  }
}

.hide-on-mobile {
  display: none;
}

@media screen and (min-width: 768px) {
  .main-post__title {
    font-size: 2.9em;
  }
}
@media screen and (min-width: 1024px) {
  .hide-on-mobile {
    display: grid;
  }
  .hide-on-desktop {
    display: none;
  }
}

@media screen and (min-width: 1440px) {
  .main-post__content {
    width: 45%;
  }
  .posts-wrapper {
    left: 80%;
    transform: translatex(-80%);
    max-width: 70%;
  }
}

              
            
!

JS

              
                const mainProgressBar = document.querySelector(
      ".progress-bar--primary .progress-bar__fill"
    );
const mainPosts = document.querySelectorAll(".main-post");
const posts = document.querySelectorAll(".post");

let i = 0;
let postIndex = 0;
let currentPost = posts[postIndex];
let currentMainPost = mainPosts[postIndex];

let progressInterval = setInterval(progress, 100);

function progress() {
  if (i === 100) {
    i = -5;
    // reset progress bar
    currentPost.querySelector(".progress-bar__fill").style.width = 0;
    mainProgressBar.style.width = 0;
    currentPost.classList.remove("post--active");

    postIndex++;

    currentMainPost.classList.add("main-post--not-active");
    currentMainPost.classList.remove("main-post--active");

    // reset postIndex to loop over the slides again
    if (postIndex === posts.length) {
      postIndex = 0;
    }

    currentPost = posts[postIndex];
    currentMainPost = mainPosts[postIndex];
  } else {
    i++;
    currentPost.querySelector(".progress-bar__fill").style.width = `${i}%`;
    mainProgressBar.style.width = `${i}%`;
    currentPost.classList.add("post--active");

    currentMainPost.classList.add("main-post--active");
    currentMainPost.classList.remove("main-post--not-active");
  }
}

posts.forEach((post, index) => {
  post.addEventListener("click", () => {
    disablePostsTemporarily();
    i = 0; // Reset the progress bar
    postIndex = index;
    updatePosts();
  });
});

function disablePostsTemporarily() {
  // Disable pointer events on all posts
  posts.forEach((post) => {
    post.classList.add("post--disabled");
  });

  // Re-enable pointer events after 2 1/2 seconds
  setTimeout(() => {
    posts.forEach((post) => {
      post.classList.remove("post--disabled");
    });
  }, 2500);
}

function updatePosts() {
  // Reset all progress bars and classes
  posts.forEach((post) => {
    post.querySelector(".progress-bar__fill").style.width = 0;
    post.classList.remove("post--active");
  });

  mainPosts.forEach((mainPost) => {
    mainPost.classList.add("main-post--not-active");
    mainPost.classList.remove("main-post--active");
  });

  // Update the current post and main post
  currentPost = posts[postIndex];
  currentMainPost = mainPosts[postIndex];

  currentPost.querySelector(".progress-bar__fill").style.width = `${i}%`;
  mainProgressBar.style.width = `${i}%`;
  currentPost.classList.add("post--active");

  currentMainPost.classList.add("main-post--active");
  currentMainPost.classList.remove("main-post--not-active");
}
              
            
!
999px

Console