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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.

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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.

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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HTML 

              
                <div class="card">
  <h2>Standard card</h2>
  <img src="https://picsum.photos/400?random=1" alt="" />
  <p>Pastry sugar croissant jelly sugar sprinkles. Sprinkles sweet apple lollipop tiramisu sprinkles. Dolor croissant vanilla donut vanilla donut. Sugar lollipop lollipop sugar ipsum orange.</p>
</div>
<div class="card">
  <h2>Card title that's longer than others</h2>
  <img src="https://picsum.photos/400?random=2" alt="" />
  <p>Pastry donut pastry sweet sweet vanilla sweet sugar donut orange. Jelly cream cookie biscuit pastry lollipop sugar jelly candy ipsum. Cookie ipsum sugar lollipop vanilla lollipop tiramisu vanilla sugar ipsum. Dolor orange donut apple apple jelly apple jelly sweet muffin.</p>
</div>
<div class="card">
  <h2>Card with long body</h2>
  <img src="https://picsum.photos/400?random=3" alt="" />
  <p>Dolor cake biscuit sweet jelly biscuit cake dolor sweet tiramisu orange dolor cake marzipan pastry marzipan cookie lollipop apple sweet. Dolor ipsum orange donut cream cream ipsum croissant muffin candy vanilla sweet marzipan muffin sprinkles orange vanilla orange orange orange. Croissant biscuit sweet jelly dolor sprinkles sugar croissant jelly marzipan candy cake cookie croissant pastry croissant marzipan ipsum sprinkles sweet. </p>
</div>

<div class="card">
  <h2>Standard card</h2>
  <img src="https://picsum.photos/400?random=4" alt="" />
  <p>Pastry sugar croissant jelly sugar sprinkles. Sprinkles sweet apple lollipop tiramisu sprinkles. Dolor croissant vanilla donut vanilla donut. Sugar lollipop lollipop sugar ipsum orange.</p>
</div>
<div class="card">
  <h2>Card title that's longer than others</h2>
  <img src="https://picsum.photos/400?random=5" alt="" />
  <p>Pastry donut pastry sweet sweet vanilla sweet sugar donut orange. Jelly cream cookie biscuit pastry lollipop sugar jelly candy ipsum. Cookie ipsum sugar lollipop vanilla lollipop tiramisu vanilla sugar ipsum. Dolor orange donut apple apple jelly apple jelly sweet muffin.</p>
</div>
<div class="card">
  <h2>Card with long body</h2>
  <img src="https://picsum.photos/400?random=6" alt="" />
  <p>Dolor cake biscuit sweet jelly biscuit cake dolor sweet tiramisu orange dolor cake marzipan pastry marzipan cookie lollipop apple sweet. Dolor ipsum orange donut cream cream ipsum croissant muffin candy vanilla sweet marzipan muffin sprinkles orange vanilla orange orange orange. Croissant biscuit sweet jelly dolor sprinkles sugar croissant jelly marzipan candy cake cookie croissant pastry croissant marzipan ipsum sprinkles sweet. </p>
</div>

<div class="card">
  <h2>Standard card</h2>
  <img src="https://picsum.photos/400?random=7" alt="" />
  <p>Pastry sugar croissant jelly sugar sprinkles. Sprinkles sweet apple lollipop tiramisu sprinkles. Dolor croissant vanilla donut vanilla donut. Sugar lollipop lollipop sugar ipsum orange.</p>
</div>
<div class="card">
  <h2>Card title that's longer than others</h2>
  <img src="https://picsum.photos/400?random=8" alt="" />
  <p>Pastry donut pastry sweet sweet vanilla sweet sugar donut orange. Jelly cream cookie biscuit pastry lollipop sugar jelly candy ipsum. Cookie ipsum sugar lollipop vanilla lollipop tiramisu vanilla sugar ipsum. Dolor orange donut apple apple jelly apple jelly sweet muffin.</p>
</div>
<div class="card">
  <h2>Card with long body</h2>
  <img src="https://picsum.photos/400?random=9" alt="" />
  <p>Dolor cake biscuit sweet jelly biscuit cake dolor sweet tiramisu orange dolor cake marzipan pastry marzipan cookie lollipop apple sweet. Dolor ipsum orange donut cream cream ipsum croissant muffin candy vanilla sweet marzipan muffin sprinkles orange vanilla orange orange orange. Croissant biscuit sweet jelly dolor sprinkles sugar croissant jelly marzipan candy cake cookie croissant pastry croissant marzipan ipsum sprinkles sweet. </p>
</div>

<div class="card">
  <h2>Standard card</h2>
  <img src="https://picsum.photos/400?random=10" alt="" />
  <p>Pastry sugar croissant jelly sugar sprinkles. Sprinkles sweet apple lollipop tiramisu sprinkles. Dolor croissant vanilla donut vanilla donut. Sugar lollipop lollipop sugar ipsum orange.</p>
</div>
<div class="card">
  <h2>Card title that's longer than others</h2>
  <img src="https://picsum.photos/400?random=11" alt="" />
  <p>Pastry donut pastry sweet sweet vanilla sweet sugar donut orange. Jelly cream cookie biscuit pastry lollipop sugar jelly candy ipsum. Cookie ipsum sugar lollipop vanilla lollipop tiramisu vanilla sugar ipsum. Dolor orange donut apple apple jelly apple jelly sweet muffin.</p>
</div>
<div class="card">
  <h2>Card with long body</h2>
  <img src="https://picsum.photos/400?random=13" alt="" />
  <p>Dolor cake biscuit sweet jelly biscuit cake dolor sweet tiramisu orange dolor cake marzipan pastry marzipan cookie lollipop apple sweet. Dolor ipsum orange donut cream cream ipsum croissant muffin candy vanilla sweet marzipan muffin sprinkles orange vanilla orange orange orange. Croissant biscuit sweet jelly dolor sprinkles sugar croissant jelly marzipan candy cake cookie croissant pastry croissant marzipan ipsum sprinkles sweet. </p>
</div>

<div class="card">
  <h2>Standard card</h2>
  <img src="https://picsum.photos/400?random=12" alt="" />
  <p>Pastry sugar croissant jelly sugar sprinkles. Sprinkles sweet apple lollipop tiramisu sprinkles. Dolor croissant vanilla donut vanilla donut. Sugar lollipop lollipop sugar ipsum orange.</p>
</div>
<div class="card">
  <h2>Card title that's longer than others</h2>
  <img src="https://picsum.photos/400?random=23" alt="" />
  <p>Pastry donut pastry sweet sweet vanilla sweet sugar donut orange. Jelly cream cookie biscuit pastry lollipop sugar jelly candy ipsum. Cookie ipsum sugar lollipop vanilla lollipop tiramisu vanilla sugar ipsum. Dolor orange donut apple apple jelly apple jelly sweet muffin.</p>
</div>
<div class="card">
  <h2>Card with long body</h2>
  <img src="https://picsum.photos/400?random=43" alt="" />
  <p>Dolor cake biscuit sweet jelly biscuit cake dolor sweet tiramisu orange dolor cake marzipan pastry marzipan cookie lollipop apple sweet. Dolor ipsum orange donut cream cream ipsum croissant muffin candy vanilla sweet marzipan muffin sprinkles orange vanilla orange orange orange. Croissant biscuit sweet jelly dolor sprinkles sugar croissant jelly marzipan candy cake cookie croissant pastry croissant marzipan ipsum sprinkles sweet. </p>
</div>
!

CSS 

              
                @import url("https://fonts.googleapis.com/css2?family=Exo:wght@600&display=swap");

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

body {
  width: 100vw;
  min-height: 100vh;
  font-family: "Exo", Arial, sans-serif;
  background-color: #557;
  padding: 2rem;
}

.card {
  background-color: white;
  border-radius: 10px;
  box-shadow: 0 2px 1px rgba(0, 0, 0, 0.09), 0 4px 2px rgba(0, 0, 0, 0.09),
    0 8px 4px rgba(0, 0, 0, 0.09), 0 16px 8px rgba(0, 0, 0, 0.09),
    0 32px 16px rgba(0, 0, 0, 0.09);
}
.card h2 {
  padding: 1rem 1rem 0;
  margin: 0;
  font-weight: 500;
}

.card img {
  max-width: 100%;
  height: auto;
}

.card p {
  line-height: 1.5;
  padding: 0 1rem;
  margin: 0 0 1rem;
}

.warning {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.5rem;
  background-color: #fed7d7;
  border-top: 1px solid #f56565;
  padding: 10px;
  color: #f56565;
}

@supports (grid-template-rows: subgrid) {
  .warning {
    display: none;
  }
}

body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 1rem;
}

.card {
  display: grid;
  grid-template-rows: 70px min-content auto;
  gap: 1rem;
}
!

JS
!
999px

Console