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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

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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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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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Packages

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HTML 

              
                <header>
  <h1>What's New Mutzi-Cat?</h1>
</header>
<article>
  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quis ipsa distinctio architecto ipsum voluptate molestias voluptates quo error quod tenetur amet a nostrum delectus porro labore ab consequatur numquam eaque.</p>
  <p>Ea inventore velit vero reiciendis molestias fugit error ipsa omnis harum optio doloremque quia pariatur suscipit adipisci earum ratione veniam. Fugiat laboriosam quidem quaerat sequi voluptas deleniti ipsa harum praesentium.</p>
  <p>Dignissimos voluptatibus assumenda modi atque consequatur consectetur esse dolores quisquam veritatis voluptate doloremque cumque quo officia magni deleniti deserunt consequuntur! Fuga praesentium libero nesciunt assumenda rem itaque ab totam id.</p>
  <p>Enim veniam earum animi repellat quaerat ratione consectetur saepe praesentium modi id illo eius sed quod voluptatem debitis facere suscipit harum expedita eum aspernatur consequuntur ipsam sequi nisi deserunt officiis.</p>
  <p>Necessitatibus nulla nihil ipsa fugiat aliquam ut unde quibusdam ipsum asperiores architecto non suscipit at illum deserunt quod eligendi iure. Quidem neque distinctio in non eaque exercitationem soluta sit reiciendis.</p>
  <p>Autem non ullam ipsum eius sit minus impedit quis incidunt perspiciatis nesciunt provident possimus nemo consequatur eligendi tempora laboriosam tempore ut nostrum porro quaerat excepturi esse alias qui architecto ad.</p>
  <p>Doloremque blanditiis eos harum commodi laudantium magni voluptate sit doloribus aliquid aliquam consectetur maiores voluptatum dolore cum suscipit eius amet veniam nihil culpa molestias? Incidunt rerum modi facere nostrum consequatur!</p>
  <p>Accusamus harum aliquam nulla ea expedita quibusdam inventore odit cum molestias eum cumque quidem consequatur sunt consequuntur excepturi saepe iusto nam dicta porro tempora soluta. Recusandae rerum non laborum voluptate.</p>
  <p>Vero quae debitis atque voluptate dignissimos provident aut esse? Minus impedit eum voluptatem rem temporibus dolor architecto quaerat quos quis debitis recusandae ex neque laboriosam quod nihil maiores odio velit?</p>
 
</article>
!

CSS 

              
                html, body {
  margin: 0; padding: 0;
  perspective: 1px;
  transform-style: preserve-3d;
  height: 100%;
  overflow-y: scroll;
  overflow-x: hidden;
}

header {
  height: 100vh;
  position: relative;
  transform-style: inherit;
}

header:before {
  background-image: url(http://beerhold.it/1000/1000);
  position: absolute;
  content: '';
  left: 0; top: 0; right: 0; bottom: 0;
  background-size: cover;
  transform: translateZ(-2px) scale(3);
  z-index:-2;
   background-position: 50% 50%;
}

header:after {
  height: 100vh;
  width: 100%;
  position: absolute;
  content: '';
  background-image: linear-gradient(to bottom, transparent 0, black 70%);
  top: 70vh;
  transform: translateZ(0.4px) scale(0.9);
  z-index: -1;
}

h1 {
  position: absolute;
  top: 50%;
  width: 100%;
  text-align: center;
  transform: translateZ(-0.5px) scale(1.5) translateY(-50%);
  color: white;
  text-shadow: 2px 2px 2px #000;
  font-size: 3rem;
  z-index: 2;
}

article {
  background-color: #fff;
  font-size: 40px;
  padding: 40px;
  position: relative;
  z-index: 3;
}
!

JS
!
999px

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