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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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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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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.

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HTML 

              
                <figure class="snip1167">
  <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/331810/sq-sample3.jpg" alt="sq-sample3"/>
  <blockquote>Calvin: Hobbes, sometimes when I'm talking, my words can't keep up with my thoughts. I am beginning to wonder why we think faster than we speak. Hobbes: Probably so we can think twice. </blockquote>
  <div class="author">
    <h5>Pelican Steve <span> LittleSnippets</span></h5>
  </div>
</figure>
<figure class="snip1167">
  <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/331810/sq-sample27.jpg" alt="sq-sample27"/>
  <blockquote>Thank you. before I begin, I'd like everyone to notice that my report is in a professional, clear plastic binder...When a report looks this good, you know it'll get an A. That's a tip kids. Write it down.</blockquote>
  <div class="author">
    <h5>Max Conversion<span> LittleSnippets</span></h5>
  </div>
</figure>
<figure class="snip1167">
  <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/331810/sq-sample17.jpg" alt="sq-sample17"/>
  <blockquote>My behaviour is addictive functioning in a disease process of toxic co-dependency. I need holistic healing and wellness before I'll accept any responsibility for my actions.</blockquote>
  <div class="author">
    <h5>Eleanor Faint<span> LittleSnippets</span></h5>
  </div>
</figure>
!

CSS 

              
                @import url(https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css);
@import url(https://fonts.googleapis.com/css?family=Raleway:400,800);
figure.snip1167 {
  font-family: 'Raleway', Arial, sans-serif;
  position: relative;
  overflow: hidden;
  margin: 10px;
  min-width: 220px;
  max-width: 310px;
  width: 100%;
  color: #333;
  text-align: left;
  box-shadow: none !important;
}
figure.snip1167 * {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
figure.snip1167 img {
  max-width: 100%;
  height: 100px;
  width: 100px;
  border-radius: 50%;
  margin: 0 auto;
  display: block;
  z-index: 1;
  position: relative;
}
figure.snip1167 blockquote {
  margin: 0;
  display: block;
  border-radius: 8px;
  position: relative;
  background-color: #fafafa;
  padding: 65px 50px 30px 50px;
  font-size: 0.8em;
  font-weight: 500;
  margin: -50px 0 0;
  line-height: 1.6em;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.15);
}
figure.snip1167 blockquote:before,
figure.snip1167 blockquote:after {
  font-family: 'FontAwesome';
  content: "\201C";
  position: absolute;
  font-size: 50px;
  opacity: 0.3;
  font-style: normal;
}
figure.snip1167 blockquote:before {
  top: 70px;
  left: 20px;
}
figure.snip1167 blockquote:after {
  content: "\201D";
  right: 20px;
  bottom: 0;
}
figure.snip1167 .author {
  padding: 15px;
  margin: 0;
  text-transform: uppercase;
  color: #ffffff;
  text-align: center;
}
figure.snip1167 .author h5 {
  opacity: 0.8;
  margin: 0;
  font-weight: 800;
}
figure.snip1167 .author h5 span {
  font-weight: 400;
  text-transform: none;
  display: block;
}
/* Demo purposes only */
body {
  background-color: #212121;
}


/* Demo purposes only */
html {
  height: 100%;
}
body {
  background-color: #212121;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-flow: wrap;
  margin: 0;
  height: 100%;
}
!

JS
!
999px

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