<div class="wrapper">
  <form action="">
    <label for="direction">Choose the inset direction</label>
    <select name="direction" id="direction">
      <option value="--inset-bottom">top to bottom</option>
      <option value="--inset-top">bottom to top</option>
      <option value="--inset-right">left to right</option>
      <option value="--inset-left">right to left</option>
    </select>
  </form>

  <ul class="stats">
    <li class="stats__item">
      <h3>Number of users</h3>
      <p>345</p>
    </li>
    <li class="stats__item">
      <h3>Revenue</h3>
      <p>$45,000</p>
    </li>
    <li class="stats__item">
      <h3>Refunds</h3>
      <p>$350</p>
    </li>
  </ul>

  <p class="demo">This is a demo from my article <a href="https://ishadeed.com/article/clip-path/">Understanding Clip Path in CSS</a></p>
</div>

:root {
  --inset-top: 0;
  --inset-right: 0;
  --inset-bottom: 100%;
  --inset-left: 0;
}

.wrapper {
  max-width: 744px;
  margin: 2rem auto;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  grid-gap: 1rem;
}

.stats__item {
  position: relative;
  display: flex;
  flex-direction: column;
  background-color: #fff;
  padding: 1rem;
  border-radius: 5px;
  box-shadow: 0 3px 10px 0 rgba(#000, 0.1);
  overflow: hidden;
  cursor: pointer;

  h3,
  p {
    /* z-index works becuase those are flex childs.. */
    z-index: 1;
    transition: 0.25s linear;
  }

  h3 {
    color: grey;
    font-size: 0.8rem;
  }

  p {
    font-size: 1.125rem;
    font-weight: bold;
  }

  &:before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: #7777e9;
    clip-path: inset(
      var(--inset-top) var(--inset-right) var(--inset-bottom) var(--inset-left)
    );
    transition: 0.4s linear;
  }

  &:hover {
    h3,
    p {
      color: #fff;
    }

    &:before {
      --inset-top: 0;
      --inset-right: 0;
      --inset-bottom: 0;
      --inset-left: 0;

      clip-path: inset(
        var(--inset-top) var(--inset-right) var(--inset-bottom)
          var(--inset-left)
      );
    }
  }
}

form {
  margin-bottom: 1rem;

  @media (min-width: 680px) {
    margin-bottom: 3rem;
  }
}

.demo {
  margin-top: 2rem;
  font-size: 14px;
}

body {
  font-family: "system-ui";
  line-height: 1.4;
  padding: 1rem;
  background-color: #f7f7f7;
}

* {
  box-sizing: border-box;
}

const transPos = document.querySelector("#direction");

transPos.addEventListener("input", function () {
  document.documentElement.style.setProperty("--inset-top", "0");
  document.documentElement.style.setProperty("--inset-right", "0");
  document.documentElement.style.setProperty("--inset-bottom", "0");
  document.documentElement.style.setProperty("--inset-left", "0");

  let direction = this.value;
  document.documentElement.style.setProperty(direction, "100%");
});