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HTML

About HTML Preprocessors

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

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

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).

Add External Stylesheets/Pens

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About External Resources

You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

You can also link to another Pen here (use the .css URL Extension) and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, use the appropriate URL Extension and we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

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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.

Add External Scripts/Pens

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About External Resources

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 Skypack, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ES6 import usage.

All packages are different, so refer to their docs for how they work.

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HTML 

              
                
      <section class="test">
          <div class="sample" lang="la">Lorem ipsum dolor sit <i>amet</i>, consectetur adipiscing elit. In blandit tempus ligula, vel placerat <i>nunc</i>. Proin tempus <n>gravida</n> tri<i>sti</i>que. Duis sed condimentum enim, si<j>t</j> amet tempus justo. Curabitur vehicula dignissim nunc. Don<i>ec</i> ornare ornare massa, eget dignissim est commodo vitae. In hac habitasse platea dictum<i>st.</i> Etiam nec diam ri<i>sus.</i> Nullam lectus nibh, ve-hicula et nulla vel, <i>temp</i>or mollis turpis. Nulla urna nunc, accumsan quis condimen<i>tum</i> eu, feugiat et tellus. Sed convallis ipsum eu suscipit fermentum. Suspendisse mattis sed nulla vel aliquam. Vestibulum commodo metus placerat enim vulputate gravida. Nulla dui ligula, volutpat et accumsan in, viverra ut sem. Donec a elementum ipsum, eu ultricies justo. Duis ac nisi non tortor finibus auctor sit amet eget augue. Donec eget est tincidunt, bibendum mi non, facilisis enim. Cras vitae ex id augue vestibulum bibendum. Aliquam aliquet cursus efficitur. Aenean bibendum lectus eget sapien egestas, sed dictum odio fermentum. Integer quam lorem, condimentum a metus id, congue egestas eros. Ut pellentesque turpis sollicitudin sapien lobortis ullamcorper vitae id augue. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Morbi condimentum viverra orci, a ultrices ipsum mattis faucibus. Aliquam posuere purus risus, sit amet bibendum nisi ultricies quis. Nam commodo est sem, at sollicitudin orci sagittis eu. Proin ac erat mauris. Maecenas quis maximus nisl. Nunc in mattis nulla. Sed eu egestas nisl, at rutrum massa. Morbi porttitor, augue non malesuada ultrices, justo justo posuere magna, sed maximus nunc sapien nec magna. </div>
        
        
          <div class="sample exclude" lang="la">Lorem ipsum dolor sit <i>amet</i>, consectetur adipiscing elit. In blandit tempus ligula, vel placerat <i>nunc</i>. Proin tempus <n>gravida</n> tri<i>sti</i>que. Duis sed condimentum enim, si<j>t</j> amet tempus justo. Curabitur vehicula dignissim nunc. Don<i>ec</i> ornare ornare massa, eget dignissim est commodo vitae. In hac habitasse platea dictum<i>st.</i> Etiam nec diam ri<i>sus.</i> Nullam lectus nibh, ve-hicula et nulla vel, <i>temp</i>or mollis turpis. Nulla urna nunc, accumsan quis condimen<i>tum</i> eu, feugiat et tellus. Sed convallis ipsum eu suscipit fermentum. Suspendisse mattis sed nulla vel aliquam. Vestibulum commodo metus placerat enim vulputate gravida. Nulla dui ligula, volutpat et accumsan in, viverra ut sem. Donec a elementum ipsum, eu ultricies justo. Duis ac nisi non tortor finibus auctor sit amet eget augue. Donec eget est tincidunt, bibendum mi non, facilisis enim. Cras vitae ex id augue vestibulum bibendum. Aliquam aliquet cursus efficitur. Aenean bibendum lectus eget sapien egestas, sed dictum odio fermentum. Integer quam lorem, condimentum a metus id, congue egestas eros. Ut pellentesque turpis sollicitudin sapien lobortis ullamcorper vitae id augue. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Morbi condimentum viverra orci, a ultrices ipsum mattis faucibus. Aliquam posuere purus risus, sit amet bibendum nisi ultricies quis. Nam commodo est sem, at sollicitudin orci sagittis eu. Proin ac erat mauris. Maecenas quis maximus nisl. Nunc in mattis nulla. Sed eu egestas nisl, at rutrum massa. Morbi porttitor, augue non malesuada ultrices, justo justo posuere magna, sed maximus nunc sapien nec magna. </div>
      </section>
!

CSS 

              
                /*** The new CSS Reset - version 1.4.5 (last updated 13.1.2022) ***/

/*
    Remove all the styles of the "User-Agent-Stylesheet", except for the 'display' property
    - The "symbol *" part is to solve Firefox SVG sprite bug
 */
*:where(:not(.exclude,iframe, canvas, img, svg, video):not(svg *, symbol *)) {
    all: unset;
    display: revert;
}

/* Preferred box-sizing value */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* Reapply the pointer cursor for anchor tags */
a {
    cursor: revert;
}

/* Remove list styles (bullets/numbers) */
ol, ul, menu {
    list-style: none;
}

/* For images to not be able to exceed their container */
img {
    max-width: 100%;
}

/* removes spacing between cells in tables */
table {
    border-collapse: collapse;
}

/* revert the 'white-space' property for textarea elements on Safari */
textarea {
    white-space: revert;
}

/* fix the feature of 'hidden' attribute.
   display:revert; revert to element instead of attribute */
:where([hidden]){
    display:none;
}

/* revert for bug in Chromium browsers
   - fix for the content editable attribute will work properly. */
:where([contenteditable]){
    -moz-user-modify: read-write;
    -webkit-user-modify: read-write;
    overflow-wrap: break-word;
    -webkit-line-break: after-white-space;
}

/* apply back the draggable feature - exist only in Chromium and Safari */
:where([draggable="true"]) {
    -webkit-user-drag: element;
}


.sample {
  /* toggling this on fixes difference in Chrome but does not bring back hyphenation */
  /*   all: revert; */
  
  width: 700px;
  font-size: 60px;
  font-family: Georgia;
  hyphens: auto;
  margin-right: 50px;
}

section {
  display: flex;
}
!

JS
!
999px

Console