<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Grid Gallery</title>
    <link rel="stylesheet" href="style.css">
</head>

<body>
    <h1 class="heading">Grid<br>Gallery</h1>
    <div class="container">
        <div class="child-container">
            <img src="https://picsum.photos/100" alt="pic 1">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/200" alt="pic 2">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/300" alt="pic 3">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/400" alt="pic 4">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/500" alt="pic 5">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/600" alt="pic 6">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/150" alt="pic 7">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/250" alt="pic 8">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/350" alt="pic 9">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/450" alt="pic 10">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/550" alt="pic 11">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/650" alt="pic 12">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/110" alt="pic 13">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/210" alt="pic 14">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/310" alt="pic 15">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/410" alt="pic 16">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/510" alt="pic 17">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/610" alt="pic 18">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/125" alt="pic 19">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/225" alt="pic 20">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/325" alt="pic 21">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/425" alt="pic 22">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/525" alt="pic 23">
        </div>
        <div class="child-container">
            <img src="https://picsum.photos/625" alt="pic 24">
        </div>
    </div>

</body>

</html>
* {
  box-sizing: border-box;
  transition: all 0.2s;
}

body {
  margin: 0px;
  overflow: hidden;
}

body .heading {
  font-size: 8rem;
  margin: 7rem 3rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  font-weight: 300;
  color: #cb904d;
  display: inline-block;
  position: relative;
  z-index: 3;
}

body .heading::after {
  content: "";
  width: 80%;
  height: 80%;
  position: absolute;
  top: 22%;
  left: 12%;
  border: 1px solid #cb904d31;
  z-index: -20;
}

@keyframes move {
  from {
    transform: rotate(45deg) translate(-120px, 60px);
  }
  to {
    transform: rotate(45deg) translate(-120px, -290px);
  }
}
body .container {
  margin: 0px;
  position: fixed;
  right: 0px;
  top: 0px;
  display: grid;
  grid-template-columns: auto auto auto;
  gap: 1rem;
  animation: move 4.5s linear infinite alternate;
}

.container .child-container {
  width: 150px;
  height: 150px;
  border-radius: 5px;
  background-color: #b9b9b9;
  text-align: center;
  overflow: hidden;
}

.child-container img {
  width: 100%;
  height: 100%;
  border-radius: inherit;
}

@media screen and (max-width: 1000px) {
  body .heading {
    margin: 9rem 3rem;
    font-size: 6rem;
  }
}

@media screen and (max-width: 780px) {
  body .heading {
    font-size: 4rem;
    margin: 12rem 2rem;
  }
  @keyframes move {
    from {
      transform: rotate(45deg) translate(20px, 80px);
    }
    to {
      transform: rotate(45deg) translate(20px, 20px);
    }
  }

  body .container {
    gap: 0.5rem;
  }
  .container .child-container {
    width: 100px;
    height: 100px;
    border-radius: 4px;
  }
}

@media screen and (max-width: 500px) {
  body .heading {
    margin: 8rem 2rem;
  }

  @keyframes move {
    from {
      transform: rotate(45deg) translate(150px, 80px);
    }
    to {
      transform: rotate(45deg) translate(150px, 20px);
    }
  }
}

External CSS

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External JavaScript

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