Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ 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

Save Automatically?

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

              
                <svg style="display:none;">
  <symbol id="one" viewBox="0 0 1440 320" preserveAspectRatio="none">
    <path fill="white" d="M0,96L1440,320L1440,320L0,320Z"></path>
  </symbol>
  <symbol id="two" viewBox="0 0 1440 320" preserveAspectRatio="none">
    <path fill="white" d="M0,32L48,37.3C96,43,192,53,288,90.7C384,128,480,192,576,197.3C672,203,768,149,864,138.7C960,128,1056,160,1152,160C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path>
  </symbol>
  <symbol id="three" viewBox="0 0 1440 320" preserveAspectRatio="none">
    <path fill="white" d="M0,128L30,144C60,160,120,192,180,197.3C240,203,300,181,360,192C420,203,480,245,540,245.3C600,245,660,203,720,192C780,181,840,203,900,181.3C960,160,1020,96,1080,80C1140,64,1200,96,1260,122.7C1320,149,1380,171,1410,181.3L1440,192L1440,320L1410,320C1380,320,1320,320,1260,320C1200,320,1140,320,1080,320C1020,320,960,320,900,320C840,320,780,320,720,320C660,320,600,320,540,320C480,320,420,320,360,320C300,320,240,320,180,320C120,320,60,320,30,320L0,320Z"></path>
  </symbol>
  <symbol id="four" viewBox="0 0 1440 320" preserveAspectRatio="none">
    <path fill="white" d="M0,192L120,192C240,192,480,192,720,165.3C960,139,1200,85,1320,58.7L1440,32L1440,320L1320,320C1200,320,960,320,720,320C480,320,240,320,120,320L0,320Z"></path>
  </symbol>
  <symbol id="five" viewBox="0 0 1440 320" preserveAspectRatio="none">
    <path fill="white" d="M0,32L120,69.3C240,107,480,181,720,192C960,203,1200,149,1320,122.7L1440,96L1440,320L1320,320C1200,320,960,320,720,320C480,320,240,320,120,320L0,320Z"></path>
  </symbol>
  <symbol id="six" viewBox="0 0 1440 320" preserveAspectRatio="none">
    <path fill="rgba(255, 255, 255, .8)" d="M0,32L120,64C240,96,480,160,720,160C960,160,1200,96,1320,64L1440,32L1440,320L1320,320C1200,320,960,320,720,320C480,320,240,320,120,320L0,320Z"></path>
  </symbol>
</svg>
<section class="hero-section position-relative">
  <video src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/162656/down-by-the-river_compressed.mp4" autoplay loop muted playsinline></video>
  <div class="overlay position-absolute d-flex align-items-center justify-content-center font-weight-bold text-white h2 mb-0">
    <blockquote class="p-4 mb-0">
      <p>By discovering nature, you discover yourself. </p>
      <footer class="blockquote-footer text-white text-right">Maxime Lagacé</footer>
    </blockquote>
  </div>
  <svg class="position-absolute w-100">
    <use xlink:href="#one"></use>
  </svg>
</section>
<section class="photos-section py-5 d-flex justify-content-center">
  <div class="container">
    <div class="row">
      <div class="col-12 col-sm-6 col-xl-3 d-flex card-outer">
        <div class="card">
          <div class="position-relative">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/162656/unsplash_nature11.jpg" class="card-img-top" alt="">
            <svg class="position-absolute w-100">
              <use xlink:href="#two"></use>
            </svg>
          </div>
          <div class="card-body">
            <h5 class="card-title">silhoutte of mountains during sunset</h5>
            <p class="card-text">Photo by <a href="https://unsplash.com/@von_co" target="_blank">Ivana Cajina</a></p>
          </div>
        </div>
      </div>
      <div class="col-12 col-sm-6 col-xl-3 d-flex card-outer">
        <div class="card">
          <div class="position-relative">
            <svg class="position-absolute w-100">
              <use xlink:href="#three"></use>
            </svg>
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/162656/unsplash_nature2.jpg" class="card-img-top" alt="">
          </div>
          <div class="card-body">
            <h5 class="card-title">landscape photography of brown mountain</h5>
            <p class="card-text">Photo by <a href="https://unsplash.com/@wilstewart3" target="_blank">Wil Stewart</a></p>
          </div>
        </div>
      </div>
      <div class="col-12 col-sm-6 col-xl-3 d-flex card-outer">
        <div class="card">
          <div class="position-relative">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/162656/unsplash_nature4.jpg" class="card-img-top" alt="">
            <svg class="position-absolute w-100">
              <use xlink:href="#four"></use>
            </svg>
          </div>
          <div class="card-body">
            <h5 class="card-title">aerial island and beaches</h5>
            <p class="card-text">Photo by <a href="https://unsplash.com/@amandabereckonedwith" target="_blank">Amanda Phung</a></p>
          </div>
        </div>
      </div>
      <div class="col-12 col-sm-6 col-xl-3 d-flex card-outer">
        <div class="card">
          <div class="position-relative">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/162656/unsplash_nature6.jpg" class="card-img-top" alt="">
            <svg class="position-absolute w-100">
              <use xlink:href="#five"></use>
            </svg>
          </div>
          <div class="card-body">
            <h5 class="card-title">photo of two black, white, and orange koi fish</h5>
            <p class="card-text">Photo by <a href="https://unsplash.com/@s_sagano" target="_blank">Sora Sagano</a></p>
          </div>
        </div>
      </div>
    </div>
    <div class="row mt-5">
      <div class="col-12 text-center">
        <a href="https://codepen.io/tutsplus/full/KLXpdm" class="btn btn-outline-success" role="button" target="_blank">See More Photos</a>
      </div>
    </div>
  </div>
</section>
<section class="cover-section position-relative">
  <div class="cover" style="background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/162656/nature-pexels.jpg);">
    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/162656/nature-pexels.jpg" class="img-fluid invisible" alt="" />
  </div>
  <div class="caption position-absolute h4 mb-0">
    Image from <a href="https://www.pexels.com/el-gr/@sarimphotos" target="_blank">Mohamed Sarim</a>
  </div>
  <svg class="position-absolute w-100">
    <use xlink:href="#six"></use>
  </svg>
</section>
<footer class="position-relative page-footer">
  <div class="container">
    <div class="row">
      <div class="col-md-3">
        <ul class="list-unstyled">
          <li>
            <a href="https://getbootstrap.com/docs/4.5/content/reboot/" target="_blank">Reboot</a>
          </li>
          <li>
            <a href="https://getbootstrap.com/docs/4.5/content/typography/" target="_blank">Typography</a>
          </li>
          <li>
            <a href="https://getbootstrap.com/docs/4.5/content/code/" target="_blank">Code</a>
          </li>
          <li>
            <a href="https://getbootstrap.com/docs/4.5/content/images/" target="_blank">Images</a>
          </li>
        </ul>
      </div>
      <div class="col-md-3">
        <ul class="list-unstyled">
          <li>
            <a href="https://getbootstrap.com/docs/4.5/components/alerts/" target="_blank">Alerts</a>
          </li>
          <li>
            <a href="https://getbootstrap.com/docs/4.5/components/badge/" target="_blank">Badge</a>
          </li>
          <li>
            <a href="https://getbootstrap.com/docs/4.5/components/breadcrumb/" target="_blank">Breadcrumb</a>
          </li>
          <li>
            <a href="https://getbootstrap.com/docs/4.5/components/buttons/" target="_blank">Buttons</a>
          </li>
          <li>
            <a href="https://getbootstrap.com/docs/4.5/components/button-group/" target="_blank">Button Group</a>
          </li>
          <li>
            <a href="https://getbootstrap.com/docs/4.5/components/card/" target="_blank">Card</a>
          </li>
        </ul>
      </div>
      <div class="col-md-3">
        <ul class="list-unstyled">
          <li>
            <a href="https://getbootstrap.com/docs/4.5/components/carousel/" target="_blank">Carousel</a>
          </li>
          <li>
            <a href="https://getbootstrap.com/docs/4.5/components/collapse/" target="_blank">Collapse</a>
          </li>
          <li>
            <a href="https://getbootstrap.com/docs/4.5/components/dropdowns/" target="_blank">Dropdowns</a>
          </li>
          <li>
            <a href="https://getbootstrap.com/docs/4.5/components/forms/" target="_blank">Forms</a>
          </li>
        </ul>
      </div>
      <div class="col-md-3">
        <p>Demo built with <a href="https://getbootstrap.com/" target="_blank">Bootstrap</a>, an open source toolkit for developing with HTML, CSS, and JS.</p>
      </div>
    </div>
    <div class="credits mt-4 text-center">
      <div class="credits-inner">
        <p class="mb-0">
          <small>Images from <a href="https://unsplash.com/" target="_blank">Unsplash.com</a> & <a href="https://www.pexels.com/" target="_blank">Pexels.com</a> | SVG icons from <a href="https://getwaves.io/" target="_blank">getwaves.io</a> | Video from <a href="https://coverr.co/" target="_blank">Coverr.co </a>
          </small>
        </p>
        <p class="mb-0">
          <small>
            Made with <span>❤</span> by <a href="http://georgemartsoukos.com/" target="_blank">George Martsoukos</a>
          </small>
        </p>
      </div>
    </div>
  </div>
</footer>
              
            
!

CSS

              
                /* RESET RULES & HELPER CLASSES
–––––––––––––––––––––––––––––––––––––––––––––––––– */
:root {
  --overlay: rgba(0, 0, 0, 0.35);
  --box-shadow: 0 5px 20px 2px rgba(0, 0, 0, 0.15);
  --green: #528119;
  --red: #e74c3c;
}

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

a {
  color: inherit;
}

a:hover {
  color: currentColor;
  text-decoration: none;
}

.cover {
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}

.overlay {
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--overlay);
}

.btn-outline-success {
  color: var(--green);
}

.btn-outline-success:hover,
.btn-outline-success:not(:disabled):not(.disabled):active {
  background: var(--green);
}

.btn-outline-success,
.btn-outline-success:hover,
.btn-outline-success:not(:disabled):not(.disabled):active {
  border-color: var(--green);
}


/* FIRST SECTION
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.hero-section {
  height: 100vh;
}

.hero-section video {
  /*position: absolute;
  top: 0;
  left: 0;*/
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-section svg {
  bottom: 0;
  left: 0;
  height: 30vh;
}


/* SECOND SECTION
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.photos-section .card-outer {
  margin-bottom: 30px;
}

.photos-section .card {
  border: none;
  box-shadow: var(--box-shadow);
}

.photos-section .card svg {
  bottom: 0;
  left: 0;
  height: 55px;
}


/* THIRD SECTION
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.cover-section .cover {
  background-attachment: fixed;
}

.cover-section .caption {
  bottom: 30px;
  left: 15px;
  z-index: 1;
}

.cover-section svg {
  bottom: 0;
  left: 0;
  height: 30vh;
}


/* FOOTER
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.page-footer {
  padding: 50px 0;
  box-shadow: var(--box-shadow);
}

.page-footer .credits {
  line-height: normal;
}

.page-footer span {
  color: var(--red);
}


/* MQ
–––––––––––––––––––––––––––––––––––––––––––––––––– */
@media screen and (min-width: 768px) {
  .cover-section .caption {
    bottom: 50px;
  }
  
  .cover-section svg {
    height: 50vh;
  }
}

@media screen and (min-width: 1200px) {
  .photos-section .card-outer {
    margin-bottom: 0;
  }
}
              
            
!

JS

              
                // we use it as an alternative to height: 100vh for better browser support especially on iOS devices
const hero = document.querySelector(".hero-section");
hero.style.height = window.innerHeight + "px";

window.addEventListener("resize", function () {
  hero.style.height = this.innerHeight + "px";
});
              
            
!
999px

Console