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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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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 

              
                <div>

  <ul>
    <input type="radio" id="list-1" name="list" value="list-1">
    <li>
      <label for="list-1"></label>
      <p>bait behavior huge earthwax</p>
    </li>
    <input type="radio" id="list-2" name="list" value="list-1">
    <li>
      <label for="list-2"></label>
      <p>sin hold production blue belief equal</p>
    </li>
    <input type="radio" id="list-3" name="list" value="list-1" checked>
    <li>
      <label for="list-3"></label>
      <p>tycoon remind shelf cultural</p>
    </li>
    <input type="radio" id="list-4" name="list" value="list-1">
    <li>
      <label for="list-4"></label>
      <p>automatic spread gravity admission quiet</p>
    </li>
    <input type="radio" id="list-5" name="list" value="list-1">
    <li>
      <label for="list-5"></label>
      <p>braid mix huge perforate</p>
    </li>
    <input type="radio" id="list-6" name="list" value="list-1">
    <li>
      <label for="list-6"></label>
      <p>pupil berry advice escape mine environmental</p>
    </li>
  </ul>

</div>
!

CSS 

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

body,
html {
  font-family: "Poppins", sans-serif;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: 12pt;
  font-weight: 400;
  color: black;
  background: black;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  margin: 0;
  padding: 0;
}

body > div {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    30deg,
    #000000,
    #0e0e0e,
    #181818,
    #202020,
    #292929,
    #313131,
    #3b3b3b,
    #444444,
    #4d4d4d,
    #575757,
    #616161,
    #6b6b6b
  );
}

div > ul {
  position: relative;
  left: 70px;
  list-style: none;
  padding: 20px 0px;
  margin: 0;
  border-left: 60px solid MediumSpringGreen;
  padding-left: 40px;
  width: 500px;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  box-shadow: rgba(0, 0, 0, 0.3) 0px -3px 0px inset,
    rgba(0, 0, 0, 0.3) 0px 3px 0px inset;
}

div > ul > li {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  width: 100%;
  height: 50px;
  color: white;
  text-transform: uppercase;
}

div > ul > li:nth-child(2) {
  --itemcolor: red;
}

div > ul > li:nth-child(4) {
  --itemcolor: orange;
}

div > ul > li:nth-child(6) {
  --itemcolor: yellow;
}

div > ul > li:nth-child(8) {
  --itemcolor: lawngreen;
}

div > ul > li:nth-child(10) {
  --itemcolor: dodgerblue;
}

div > ul > li:nth-child(12) {
  --itemcolor: violet;
}

div > ul > li::before {
  content: "";
  position: absolute;
  left: -75px;
  width: 60px;
  height: 60px;
  border-radius: 60px;
  background: black;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 5px;
  border-style: double dotted solid dashed;
  font-weight: 600;
  box-shadow: rgba(0, 0, 0, 0.16) 0px 3px 6px, rgba(0, 0, 0, 0.23) 0px 3px 6px;
}

div > ul > li::after {
  color: var(--itemcolor);
  position: absolute;
  left: -75px;
  width: 60px;
  height: 60px;
  background: transparent;
  content: "#1";
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

div > ul > li:nth-child(2)::before {
  border-color: var(--itemcolor);
  color: var(--itemcolor);
}

div > ul > li:nth-child(4)::before {
  border-color: var(--itemcolor);
  color: var(--itemcolor);
}

div > ul > li:nth-child(4)::after {
  content: "#2";
  color: var(--itemcolor);
}

div > ul > li:nth-child(6)::before {
  border-color: var(--itemcolor);
}

div > ul > li:nth-child(6)::after {
  content: "#3";
  color: var(--itemcolor);
}

div > ul > li:nth-child(8)::before {
  border-color: var(--itemcolor);
}

div > ul > li:nth-child(8)::after {
  content: "#4";
  color: var(--itemcolor);
}

div > ul > li:nth-child(10)::before {
  border-color: var(--itemcolor);
}

div > ul > li:nth-child(10)::after {
  content: "#5";
  color: var(--itemcolor);
}

div > ul > li:nth-child(12)::before {
  border-color: var(--itemcolor);
}

div > ul > li:nth-child(12)::after {
  content: "#6";
  color: var(--itemcolor);
}

div > ul > li:hover::before {
  background: var(--itemcolor);
  border-color: black;
  animation: bulletspin 5s linear infinite;
  animation-fill-mode: forwards;
}

@keyframes bulletspin {
  0% {
    transform: rotateZ(0deg);
  }
  100% {
    transform: rotateZ(360deg);
  }
}

div > ul > li:hover::after {
  color: white;
}

div > ul > li:nth-child(4):hover::after,
div > ul > li:nth-child(6):hover::after,
div > ul > li:nth-child(8):hover::after {
  color: black;
}

div > ul > li > p {
  position: relative;
  font-size: 12pt;
  width: auto;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  margin: 0;
  overflow: hidden;
  white-space: nowrap;
  transition: all 0.1s ease-in-out;
}

div > ul > li > p::after {
  position: absolute;
  background: var(--itemcolor);
  content: "";
  bottom: 10px;
  left: -100%;
  width: 100%;
  height: 3px;
  transition: all 0.2s ease-in-out;
}

div > ul > li:hover > p::after {
  left: 0;
  transition: all 0.2s ease-in-out;
}

div > ul > li:active > p {
  transform: scale(0.95);
}

div > ul > input {
  position: absolute;
  display: none;
  z-index: 3;
}

div > ul > li > label {
  position: absolute;
  width: 120%;
  height: 100%;
  right: 0;
  z-index: 4;
}

div > ul > li > label::before {
  position: absolute;
  content: "Quinoa irony vape, mixtape viral mumblecore readymade street art pork belly salvia yuccie paleo butcher selfies.";
  top: -70px;
  left: -100%;
  width: 250px;
  min-height: 200px;
  padding: 30px 20px;
  background: var(--itemcolor);
  visibility: hidden;
  opacity: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 11pt;
  color: white;
  text-align: center;
  text-transform: none;
  line-height: 16pt;
  border-radius: 10px;
  box-shadow: rgba(0, 0, 0, 0.3) 0px -3px 0px inset;
  transition: all 0.3s ease-in-out;
}

div > ul > li:nth-child(2) > label::before {
  content: "Who moved my cheese smelly cheese bocconcini. Caerphilly cream cheese cheeseburger gouda cheesy grin ricotta stilton the big cheese.";
  top: 0;
}

div > ul > li:nth-child(4) > label::before {
  content: "I was having the most wonderful dream. Except you were there, and you were there, and you were there! I daresay that Fry has discovered the smelliest object in the known universe! The alien mothership is in orbit here.";
  top: -50px;
}

div > ul > li:nth-child(6) > label::before {
  content: "I'm baby copper mug chillwave shaman freegan normcore, hell of man braid marfa tacos meh. Fam tacos tbh readymade biodiesel 90's vaporware small batch swag locavore chambray DIY.";
}

div > ul > li:nth-child(4) > label::before,
div > ul > li:nth-child(6) > label::before,
div > ul > li:nth-child(8) > label::before {
  color: black;
}

div > ul > li:nth-child(8) > label::before {
  content: "But anyhoo, can you believe that the only reason the club is going under is because it's in a terrifying neighborhood? I know, I just call her Annabelle cause she's shaped like a…she's the belle of the ball!";
}

div > ul > li:nth-child(10) > label::before {
  top: -120px;
  content: "You won't have time for sleeping, soldier, not with all the bed making you'll be doing. Wow!";
}

div > ul > li:nth-child(12) > label::before {
  top: unset;
  bottom: 0;
  content: "The Work has the right to modify or distribute the Program (or any work based on the Internet using the software, or if you distribute are governed by the Copyright Holder of the initial Agreement Steward.)";
}

div > ul > li > label::after {
  position: absolute;
  top: 20%;
  left: -20%;
  content: "";
  width: 0;
  height: 0;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  border-left: 30px solid var(--itemcolor);
  visibility: hidden;
  opacity: 0;
  transform: scale(0);
}

div > ul > li > label:hover {
  cursor: pointer;
}

div > ul > input:checked + li > label::before,
div > ul > input:checked + li > label::after {
  visibility: visible;
  opacity: 1;
  transition: all 0.3s ease-in-out;
}

div > ul > input:checked + li > label::before {
  left: -64%;
}

div > ul > input:checked + li > label::after {
  left: -12%;
  transform: scale(1);
}

div > ul > input:checked + li > p {
  color: var(--itemcolor);
  font-weight: 700;
  font-size: 14pt;
  transition: all 0.1s ease-in-out;
}

/* Make Responsive */

@media (max-width: 990px) {
  body {
    width: 100%;
    height: 100%;
    overflow-y: auto;
  }

  div {
    min-height: 100vh;
    padding: 20px 0px;
  }

  div > ul {
    left: 20px;
    align-self: flex-start;
  }

  div > ul > li > label::before {
    width: 300px;
    left: 100%;
    top: 100% !important;
  }

  div > ul > li > label::after {
    left: 0;
    top: 230%;
  }

  div > ul > input:checked + li {
    margin-bottom: 220px;
  }

  div > ul > input:checked + li > label::before {
    left: 21%;
  }

  div > ul > input:checked + li > label::after {
    left: 12%;
    top: 230%;
  }
}

@media (max-width: 630px) {
  div > ul > li {
    height: 70px;
  }
  div > ul > li > p {
    font-size: 11pt;
  }
  div > ul > input:checked + li > p {
    font-size: 12pt;
  }
  div > ul > li > label::before {
    padding: 20px;
    left: 10% !important;
  }
  div > ul > li > label::after {
    left: 0 !important;
    filter: drop-shadow(1px 1px 2px black);
  }
}

@media (max-width: 550px) {
  div > ul {
    width: 320px;
  }
  div > ul > li {
    white-space: normal !important;
  }
  div > ul > li > p {
    white-space: normal !important;
    line-height: 11pt;
  }
  div > ul > li > label::before {
    padding: 20px;
    left: -10% !important;
  }
  div > ul > li > label::after {
    left: -16% !important;
  }
}

@media (max-width: 375px) {
  div > ul {
    width: 290px;
  }
  div > ul > li > label::before {
    width: 230px;
    min-height: 260px;
  }
  div > ul > input:checked + li {
    margin-bottom: 270px;
  }
}
!

JS
!
999px

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