Pen Settings

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.

Learn more · Versions

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.

Learn more · Versions

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

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

Powered by Algolia
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.

Learn more

+ add another resource

JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

Learn more · Versions

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

Powered by Algolia
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.

Learn more

+ add another resource

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.

Powered by Algolia
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.

If you're using React / ReactDOM, make sure to turn on Babel for the JSX processing.

Behavior

Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML 

              
                <div class="card" data-type="brand">
  <div class="card__icon-container">
    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
      <path d="M15.5 3.5V2M19.4393 4.56066L20.5 3.5M20.5103 8.5H22.0103M21.9506 13C21.4489 18.0533 17.1853 22 12 22C6.47715 22 2 17.5228 2 12C2 6.81465 5.94668 2.5511 11 2.04938M12 8H16V12M15.6197 8C13.2653 11.3276 9.38636 13.5 5 13.5C3.9971 13.5 3.02072 13.3864 2.08302 13.1715" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" />
    </svg>
  </div>
  <div class="card__text-container">
    <h2>Welcome to FakeApp™</h2>
    <p>This is an app that doesn't exist at all!</p>
    <p>We invite you to check what that app offers by using our tour functionality.</p>
    <div class="button__container">
      <button class="button__primary">Start tour</button>
      <button class="button__secondary">Omit</button>
    </div>
  </div>
</div>

<div class="card" data-type="success">
  <div class="card__icon-container">
    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
      <path d="M9 12L11 14L15.5 9.5M17.9012 4.99851C18.1071 5.49653 18.5024 5.8924 19.0001 6.09907L20.7452 6.82198C21.2433 7.02828 21.639 7.42399 21.8453 7.92206C22.0516 8.42012 22.0516 8.97974 21.8453 9.47781L21.1229 11.2218C20.9165 11.7201 20.9162 12.2803 21.1236 12.7783L21.8447 14.5218C21.9469 14.7685 21.9996 15.0329 21.9996 15.2999C21.9997 15.567 21.9471 15.8314 21.8449 16.0781C21.7427 16.3249 21.5929 16.549 21.4041 16.7378C21.2152 16.9266 20.991 17.0764 20.7443 17.1785L19.0004 17.9009C18.5023 18.1068 18.1065 18.5021 17.8998 18.9998L17.1769 20.745C16.9706 21.2431 16.575 21.6388 16.0769 21.8451C15.5789 22.0514 15.0193 22.0514 14.5212 21.8451L12.7773 21.1227C12.2792 20.9169 11.7198 20.9173 11.2221 21.1239L9.47689 21.8458C8.97912 22.0516 8.42001 22.0514 7.92237 21.8453C7.42473 21.6391 7.02925 21.2439 6.82281 20.7464L6.09972 19.0006C5.8938 18.5026 5.49854 18.1067 5.00085 17.9L3.25566 17.1771C2.75783 16.9709 2.36226 16.5754 2.15588 16.0777C1.94951 15.5799 1.94923 15.0205 2.1551 14.5225L2.87746 12.7786C3.08325 12.2805 3.08283 11.7211 2.8763 11.2233L2.15497 9.47678C2.0527 9.2301 2.00004 8.96568 2 8.69863C1.99996 8.43159 2.05253 8.16715 2.15472 7.92043C2.25691 7.67372 2.40671 7.44955 2.59557 7.26075C2.78442 7.07195 3.00862 6.92222 3.25537 6.8201L4.9993 6.09772C5.49687 5.89197 5.89248 5.4972 6.0993 5.00006L6.82218 3.25481C7.02848 2.75674 7.42418 2.36103 7.92222 2.15473C8.42027 1.94842 8.97987 1.94842 9.47792 2.15473L11.2218 2.87712C11.7199 3.08291 12.2793 3.08249 12.7771 2.87595L14.523 2.15585C15.021 1.94966 15.5804 1.9497 16.0784 2.15597C16.5763 2.36223 16.972 2.75783 17.1783 3.25576L17.9014 5.00153L17.9012 4.99851Z" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" />
    </svg>

  </div>
  <div class="card__text-container">
    <h2>Your information has been updated</h2>
    <p>Your new account information has been saved successfully!</p>
    <p>You can secure your account by adding a two factor autenthication. Do you want to continue with this process?</p>
    <div class="button__container">
      <button class="button__primary">Continue</button>
      <button class="button__secondary">I'll do it later</button>
    </div>
  </div>
</div>

<div class="card" data-type="warning">
  <div class="card__icon-container">
    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M11.9998 8.99999V13M11.9998 17H12.0098M10.6151 3.89171L2.39019 18.0983C1.93398 18.8863 1.70588 19.2803 1.73959 19.6037C1.769 19.8857 1.91677 20.142 2.14613 20.3088C2.40908 20.5 2.86435 20.5 3.77487 20.5H20.2246C21.1352 20.5 21.5904 20.5 21.8534 20.3088C22.0827 20.142 22.2305 19.8857 22.2599 19.6037C22.2936 19.2803 22.0655 18.8863 21.6093 18.0983L13.3844 3.89171C12.9299 3.10654 12.7026 2.71396 12.4061 2.58211C12.1474 2.4671 11.8521 2.4671 11.5935 2.58211C11.2969 2.71396 11.0696 3.10655 10.6151 3.89171Z" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
</svg>

  </div>
  <div class="card__text-container">
    <h2>You're about to delete information</h2>
    <p>Do you want to delete this contact information? This process can't be reversed.</p>
    <div class="button__container">
      <button class="button__primary">Continue</button>
      <button class="button__secondary">Cancel</button>
    </div>
  </div>
</div>

<div class="card" data-type="error">
  <div class="card__icon-container">
    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M9 9L15 15M15 9L9 15M7.8 21H16.2C17.8802 21 18.7202 21 19.362 20.673C19.9265 20.3854 20.3854 19.9265 20.673 19.362C21 18.7202 21 17.8802 21 16.2V7.8C21 6.11984 21 5.27976 20.673 4.63803C20.3854 4.07354 19.9265 3.6146 19.362 3.32698C18.7202 3 17.8802 3 16.2 3H7.8C6.11984 3 5.27976 3 4.63803 3.32698C4.07354 3.6146 3.6146 4.07354 3.32698 4.63803C3 5.27976 3 6.11984 3 7.8V16.2C3 17.8802 3 18.7202 3.32698 19.362C3.6146 19.9265 4.07354 20.3854 4.63803 20.673C5.27976 21 6.11984 21 7.8 21Z" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
  </div>
  <div class="card__text-container">
    <h2>Your session has expired</h2>
    <p>Your account sesion was inactive for more than 10 minutes and was ended for security reasons.</p>
    <p>All your information has been saved.</p>
    <div class="button__container">
      <button class="button__primary">Log in</button>
      <button class="button__secondary">Close window</button>
    </div>
  </div>
</div>
!

CSS 

              
                :root {
  --clr-neutral-100: oklch(97% 0.01 280);
  --clr-neutral-200: oklch(89% 0.01 280);
  --clr-neutral-300: oklch(80% 0.01 280);
  --clr-neutral-400: oklch(71% 0.01 280);
  --clr-neutral-500: oklch(60% 0.01 280);
  --clr-neutral-600: oklch(49% 0.01 280);
  --clr-neutral-700: oklch(38% 0.01 280);
  --clr-neutral-800: oklch(25% 0.01 280);
  --clr-neutral-900: oklch(12% 0.01 280);

  --clr-brand-100: oklch(97% 0.02 280);
  --clr-brand-200: oklch(89% 0.05 280);
  --clr-brand-300: oklch(80% 0.12 280);
  --clr-brand-400: oklch(71% 0.19 280);
  --clr-brand-500: oklch(60% 0.27 280);
  --clr-brand-600: oklch(49% 0.19 280);
  --clr-brand-700: oklch(38% 0.12 280);
  --clr-brand-800: oklch(25% 0.05 280);
  --clr-brand-900: oklch(12% 0.02 280);

  --clr-success-100: oklch(97% 0.02 150);
  --clr-success-200: oklch(89% 0.05 150);
  --clr-success-300: oklch(80% 0.12 150);
  --clr-success-400: oklch(71% 0.19 150);
  --clr-success-500: oklch(60% 0.27 150);
  --clr-success-600: oklch(49% 0.19 150);
  --clr-success-700: oklch(38% 0.12 150);
  --clr-success-800: oklch(25% 0.05 150);
  --clr-success-900: oklch(12% 0.02 150);

  --clr-warning-100: oklch(97% 0.02 80);
  --clr-warning-200: oklch(89% 0.05 80);
  --clr-warning-300: oklch(80% 0.12 80);
  --clr-warning-400: oklch(71% 0.19 80);
  --clr-warning-500: oklch(60% 0.27 80);
  --clr-warning-600: oklch(49% 0.19 80);
  --clr-warning-700: oklch(38% 0.12 80);
  --clr-warning-800: oklch(25% 0.05 80);
  --clr-warning-900: oklch(12% 0.02 80);

  --clr-error-100: oklch(97% 0.02 20);
  --clr-error-200: oklch(89% 0.05 20);
  --clr-error-300: oklch(80% 0.12 20);
  --clr-error-400: oklch(71% 0.19 20);
  --clr-error-500: oklch(60% 0.27 20);
  --clr-error-600: oklch(49% 0.19 20);
  --clr-error-700: oklch(38% 0.12 20);
  --clr-error-800: oklch(25% 0.05 20);
  --clr-error-900: oklch(12% 0.02 20);

  /*   Design tokens */

  --clr-background: var(--clr-neutral-100);
  --clr-text: var(--clr-neutral-800);
  --clr-text-invert: var(--clr-neutral-200);
  --clr-brand-accent: var(--clr-brand-700);
  --clr-brand-background: var(--clr-brand-200);
  --clr-success-accent: var(--clr-success-700);
  --clr-success-background: var(--clr-success-200);
  --clr-warning-accent: var(--clr-warning-700);
  --clr-warning-background: var(--clr-warning-200);
  --clr-error-accent: var(--clr-error-700);
  --clr-error-background: var(--clr-error-200);
}

@media screen and (prefers-color-scheme: dark) {
  :root {
    --clr-background: var(--clr-neutral-900);
    --clr-text: var(--clr-neutral-200);
    --clr-text-invert: var(--clr-neutral-900);
    --clr-brand-accent: var(--clr-brand-300);
    --clr-brand-background: var(--clr-brand-800);
    --clr-success-accent: var(--clr-success-300);
    --clr-success-background: var(--clr-success-800);
    --clr-warning-accent: var(--clr-warning-300);
    --clr-warning-background: var(--clr-warning-800);
    --clr-error-accent: var(--clr-error-300);
    --clr-error-background: var(--clr-error-800);
  }
}

@supports not (background-color: okclh(0%, 0, 0)) {
  :root {
    --clr-neutral-100: #f3f4fc;
    --clr-neutral-200: #d9dae1;
    --clr-neutral-300: #bcbdc4;
    --clr-neutral-400: #a0a1a8;
    --clr-neutral-500: #7f8086;
    --clr-neutral-600: #5f6066;
    --clr-neutral-700: #414248;
    --clr-neutral-800: #212126;
    --clr-neutral-900: #050509;

    --clr-brand-100: #f3f4ff;
    --clr-brand-200: #d4d8fa;
    --clr-brand-300: #b0b7ff;
    --clr-brand-400: #9094ff;
    --clr-brand-500: #6d64ff;
    --clr-brand-600: #5147c9;
    --clr-brand-700: #383681;
    --clr-brand-800: #1d1e3a;
    --clr-brand-900: #05050e;

    --clr-success-100: #edf9ef;
    --clr-success-200: #c6e4cb;
    --clr-success-300: #83d494;
    --clr-success-400: #1dc15d;
    --clr-success-500: #009a46;
    --clr-success-600: #007433;
    --clr-success-700: #005121;
    --clr-success-800: #0b2813;
    --clr-success-900: #020703;

    --clr-warning-100: #fdf4e7;
    --clr-warning-200: #edd8b6;
    --clr-warning-300: #e5b562;
    --clr-warning-400: #d19500;
    --clr-warning-500: #a67600;
    --clr-warning-600: #7e5900;
    --clr-warning-700: #583d00;
    --clr-warning-800: #2e1e00;
    --clr-warning-900: #0a0500;

    --clr-error-100: #fff2f1;
    --clr-error-200: #fccecc;
    --clr-error-300: #ff9f9f;
    --clr-error-400: #ff6970;
    --clr-error-500: #ee003f;
    --clr-error-600: #b31030;
    --clr-error-700: #742028;
    --clr-error-800: #371617;
    --clr-error-900: #0c0303;
  }
}

/* Box sizing rules */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Remove default margin */
body,
h2,
p {
  margin: 0;
}

/* Set core body defaults */
body {
  min-height: 100vh;
  text-rendering: optimizeSpeed;
  line-height: 1.5;
}

/* Inherit fonts for inputs and buttons */

button {
  font: inherit;
}

/* Remove all animations, transitions and smooth scroll for people that prefer not to see them */
@media (prefers-reduced-motion: reduce) {
  html:focus-within {
    scroll-behavior: auto;
  }
}

body {
  background-color: var(--clr-background);
  display: grid;
  align-content: center;
  grid-template-columns: repeat(auto-fit, minmax(min(25rem, 100%), 1fr));
  gap: 1rem;
  padding: 0.5rem;
  color: var(--clr-text);
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif,
    "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

:focus-visible {
  outline: max(2px, 0.15em) solid currentColor;
  outline-offset: -6px;
}

p {
  max-width: 40ch;
}

.card {
  display: grid;
  grid-template-columns: auto 1fr;
  border: 5px solid var(--card-accent);
  border-radius: 20px;
  background-color: var(--card-background);
}

.card[data-type="brand"] {
  --card-accent: var(--clr-brand-accent);
  --card-background: var(--clr-brand-background);
}

.card[data-type="success"] {
  --card-accent: var(--clr-success-accent);
  --card-background: var(--clr-success-background);
}

.card[data-type="warning"] {
  --card-accent: var(--clr-warning-accent);
  --card-background: var(--clr-warning-background);
}

.card[data-type="error"] {
  --card-accent: var(--clr-error-accent);
  --card-background: var(--clr-error-background);
}

.card__icon-container {
  padding: 1rem 0.5rem;
  background-color: var(--card-accent);
  color: var(--clr-text-invert);
  border-radius: 10px 0 0 10px;
}

.card svg {
  width: clamp(1.5rem, 0.955rem + 2.73vw, 3rem);
  height: clamp(1.5rem, 0.955rem + 2.73vw, 3rem);
}

.card__text-container {
  display: flex;
  flex-direction: column;
  gap: 1em;
  padding: 1rem;
}

.card h2 {
  color: var(--card-accent);
  margin-block-end: 0.5em;
  max-width: 28ch;
  line-height: 1.3;
}

.button__container {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-block-start: auto;
}

button {
  padding: 0.5rem 1rem;
  font-weight: 600;
  border-radius: 10px;
  border: 2px solid;
}

.button__primary {
  background-color: var(--card-accent);
  color: var(--clr-text-invert);
  border-color: transparent;
}

.button__secondary {
  background-color: transparent;
  color: var(--card-accent);
  border-color: currentColor;
}
!

JS
!
999px

Console