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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

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

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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

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).

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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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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.

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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.

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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.

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HTML 

              
                <p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Distinctio itaque, delectus perferendis quaerat animi rem similique ea eveniet earum vel, provident consectetur eaque debitis dicta? Aliquid eius temporibus qui dolore!</p>
<p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Voluptate quas molestiae, necessitatibus enim aliquid rerum excepturi! Tempora illum ipsum placeat voluptates in sunt ducimus perspiciatis. Praesentium modi eligendi error deserunt?
Hic culpa explicabo harum ratione sapiente adipisci officiis placeat error amet repellat debitis, cum perferendis repellendus dolore, exercitationem rem deserunt. Suscipit ad perferendis dolore iste? Sapiente sequi laudantium ad porro!</p>



<div class="wrapper">
  <div class="header">
      <img src="https://picsum.photos/800/600" alt="" width="200">
  </div>
  <div class="main">
  <div class="cards">
    <div class="card"> Card 1 </div>
    <div class="card"> Card 2
   <p> Lorem ipsum dolor, sit amet consectetur adipisicing elit. Sit nemo fugiat provident velit delectus, tempore a! Maxime enim sequi, molestias ea cumque facere iste non nisi aliquid, fuga quos id?</p>
    
   </div>
    <div class="card"> Card 3 </div>
    <div class="card"> Card 4
      <p>  Lorem, ipsum dolor sit amet consectetur adipisicing elit. Officia, unde sunt! Magnam architecto veritatis nobis alias, tenetur asperiores odio id voluptatem et similique voluptatum laudantium tempora aliquid dolore iusto error.
    Error impedit mollitia at eum, eaque corporis est cumque ex aliquid omnis, rem modi id consequatur molestias hic. Quisquam, dolore? Fugiat iure asperiores veritatis sapiente, vel numquam ad ipsa aut.</p>
  </div>
    <div class="card"> Card 5 </div>
    <div class="card"> Card 6 </div>
    <div class="card"> Card 7 </div>
    <div class="card"> Card 8 </div>
  </div>
  </div>
</div>


<p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Sequi nemo veniam hic! Maxime tempora voluptas nulla consequuntur? Repellat quis aliquid quam incidunt! Saepe repudiandae aut quasi pariatur nesciunt possimus cum.
Quod sunt omnis possimus est totam ipsum reprehenderit blanditiis illum praesentium voluptate, consectetur eos vel iusto repellat fugiat odio quam dolores sapiente provident explicabo officia sequi illo. Maiores, ullam dolorem!
Cum suscipit omnis tempora rerum aperiam quaerat consectetur exercitationem consequatur consequuntur mollitia tenetur voluptate qui vitae perferendis magni quod, placeat sequi ut sapiente quae. Quidem accusamus asperiores corrupti rerum ab?</p>
!

CSS 

              
                body {
  font-size: 20px;
}
.wrapper {
  max-width: 768px;
  margin: 0 auto;
}
.header img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}
.cards {
  overflow: hidden;
}
.card {
  font-size: 24px;
  font-weight: 700;
  display: flex;
  align-items: center;   
  justify-content: center;
  padding: 15px;
  min-height: 150px;
  text-align: center;
  background: #F1F3FF;
  border: 1px solid rgba(7, 4, 20, 0.1);
  border-radius: 14px;
}
!

JS 

              
                gsap.registerPlugin(ScrollTrigger);

const cards  = document.querySelectorAll('.card');
const header  = document.querySelector('.header');

ScrollTrigger.create({
      trigger: '.wrapper',
      // markers: true,
      start: "top top",
      end: "bottom bottom",
      pin: true,
});

  cards.forEach((item, i) => {
      // let offset = header.offsetHeight * i;

      let st = ScrollTrigger.create({
        trigger: item,
        markers: true,
        start: "top top",
        end: "+=" + item.offsetHeight,
        animation: gsap.to(item, {yPercent: i * -99}), 
        scrub: true
      });

  

       
    });
!
999px

Console