Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

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.

+ add another resource

JavaScript

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.

+ 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.

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

              
                <section>
  <div class="grid__container">
    <div class="grid__item"></div>
    <div class="grid__item"></div>
    <div class="grid__item"></div>
    <div class="grid__item"></div>
    <div class="grid__item"></div>
    <div class="grid__item"></div>
  </div>
</section>

<div class="form">
  <div class="controle">
    <div class="button" id="add">
      <svg t="1621567639573" class="button__icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="8088" width="200" height="200">
        <path d="M696 480H544V328c0-4.4-3.6-8-8-8h-48c-4.4 0-8 3.6-8 8v152H328c-4.4 0-8 3.6-8 8v48c0 4.4 3.6 8 8 8h152v152c0 4.4 3.6 8 8 8h48c4.4 0 8-3.6 8-8V544h152c4.4 0 8-3.6 8-8v-48c0-4.4-3.6-8-8-8z" p-id="8089"></path>
        <path d="M512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64z m0 820c-205.4 0-372-166.6-372-372s166.6-372 372-372 372 166.6 372 372-166.6 372-372 372z" p-id="8090"></path>
      </svg>
    </div>
    <div class="button" id="subtract">
      <svg t="1621567672920" class="button__icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="8222" width="200" height="200">
        <path d="M696 480H328c-4.4 0-8 3.6-8 8v48c0 4.4 3.6 8 8 8h368c4.4 0 8-3.6 8-8v-48c0-4.4-3.6-8-8-8z" p-id="8223"></path>
        <path d="M512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64z m0 820c-205.4 0-372-166.6-372-372s166.6-372 372-372 372 166.6 372 372-166.6 372-372 372z" p-id="8224"></path>
      </svg>
    </div>
  </div>
</div>
              
            
!

CSS

              
                @import url("https://fonts.googleapis.com/css2?family=Exo:wght@600&display=swap");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  width: 100vw;
  min-height: 100vh;

  display: flex;
  justify-content: center;
  flex-direction: column;
  gap: 20px;
  font-family: "Exo", Arial, sans-serif;
  background-color: #f7f7f7;

  padding: 20px;
}

section {
  margin: 0 auto;

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  box-shadow: 0 0 0 6px rgb(0 0 0 / 13%);
  border-radius: 3px;
  gap: 20px;
  min-width: 80vw;
}

.grid__container {
  width: 100%;
  box-shadow: 0 0 0 1px #f36;
  position: relative;
  /*   min-width: 20vmin; */
  /*   min-height: 20vmin; */
}

.grid__item {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #f7f7f7;
  position: relative;
  counter-increment: item;
  padding: 10px;
}

.grid__item::before {
  content: "i" counter(item);
  color: #fff;
  font-size: 1.2rem;
  padding: 10px;
  text-shadow: 1px 1px 0 rgba(0 0 0 / 0.25);
  background-color: rgb(0 0 0 / 0.6);
  background-image: conic-gradient(
    from 90deg at 40% -25%,
    #ffd700,
    #f79d03,
    #ee6907,
    #e6390a,
    #de0d0d,
    #d61039,
    #cf1261,
    #c71585,
    #cf1261,
    #d61039,
    #de0d0d,
    #ee6907,
    #f79d03,
    #ffd700,
    #ffd700,
    #ffd700
  );
  width: 32px;
  aspect-ratio: 1 / 1;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  filter: drop-shadow(0 0 3px rgb(255 255 255 / 0.5));
}

.grid__item:nth-child(n + 1) {
  background-color: #f1c2c6;
}

.grid__item:nth-child(2n + 1) {
  background-color: #dac2f1;
}

.grid__item:nth-child(3n + 1) {
  background-color: #ccf1c2;
}

.grid__item:nth-child(4n + 1) {
  background-color: #c2e9f1;
}

.grid__item:nth-child(5n + 1) {
  background-color: #f1ebc2;
}
.grid__item:nth-child(6n + 1) {
  background-color: #09f;
}

.grid__item:nth-child(7n + 1) {
  background-color: #ff5722;
}

.grid__item:nth-child(8n + 1) {
  background-color: #8bc34a;
}

.grid__item:nth-child(9n + 1) {
  background-color: #f66803;
}
1 .grid__item:nth-child(10n + 1) {
  background-color: #0d815f;
}
.grid__item:nth-child(11n + 1) {
  background-color: #28d1c2;
}
.grid__item:nth-child(12n + 1) {
  background-color: #4a28d1;
}
h3 {
  margin: 20px auto;
}

.form {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 15px;
  margin-top: 20px;
}

.button {
  --background: #275efe;
  --rectangle: #184fee;
  --success: #4672f1;
  --text: #fff;
  --arrow: #fff;
  --checkmark: #fff;
  --shadow: rgba(10, 22, 50, 0.24);
  display: flex;
  background: var(--background);
  border-radius: 50%;
  box-shadow: 0 2px 8px -1px var(--shadow);
  color: var(--text);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: none 0;
  width: 44px;
  aspect-ratio: 1 / 1;
  cursor: pointer;
}

#subtract {
  --background: #242836;
  --rectangle: #1c212e;
  --arrow: #f5f9ff;
  --text: #f5f9ff;
  --success: #2f3545;
}

.button:hover {
  transform: scale(0.95);
  box-shadow: 0 1px 4px -1px var(--shadow);
}

.button .button__icon {
  fill: var(--text);
  width: 100%;
  height: auto;
}

.controle {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}

label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.grid__container {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, [col-a-start] 1fr [col-b-start] 2fr);
}

              
            
!

JS

              
                const gridContainer = document.querySelector(".grid__container");
const addItemHander = document.getElementById("add");
const subtractItemHander = document.getElementById("subtract");

function getRandomIntInclusive(min, max) {
  min = Math.ceil(min);
  max = Math.floor(max);
  return Math.floor(Math.random() * (max - min + 1)) + min;
}

function getItemLength() {
  var gridItems = document.querySelectorAll(".grid__item");
  var len = gridItems.length;
  return len;
}

addItemHander.addEventListener("click", () => {
  let newItem = document.createElement("div");

  newItem.classList.add("grid__item");
  // const svgElement = `<svg class="icon"><use xlink:href="#unicorn-${getRandomIntInclusive(
  //   1,
  //   9
  // )}"></use></svg>`;
  // newItem.innerHTML = svgElement;
  gridContainer.appendChild(newItem);

  getItemLength();
});

subtractItemHander.addEventListener("click", () => {
  const items = getItemLength();
  if (items > 0) {
    gridContainer.removeChild(gridContainer.children[items - 1]);
  }
});

              
            
!
999px

Console