<div class="gallery">
  <span class="gallery__hdg">GALLERY</span>
  <div class="gallery__group">
    <div data-tilt class="gallery__img gallery__img--1"></div>
    <div data-tilt class="gallery__img gallery__img--2"></div>
    <div data-tilt class="gallery__img gallery__img--3"></div>
    <div data-tilt class="gallery__img gallery__img--4"></div>
  </div>
</div>

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  font-family: sans-serif;
}

body {
  margin: 0;
  width: 3000px;
}

.gallery {
  width: 100%;
  height: 100%;
  background-color: #222;
  display: flex;
  align-items: center;
  &__hdg {
    display: block;
    margin-left: 160px;
    color: #888;
    font-size: 120px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-shadow: 1px -1px 1px #555,
        1px -2px 1px #555,
        1px -3px 1px #555,
        1px -4px 1px #555,
        1px -5px 1px #555,
        1px -6px 1px #555,
    1px -10px 6px rgba(16, 16, 16, .4),
    1px -15px 10px rgba(16, 16, 16, .2),
    1px -20px 35px rgba(16, 16, 16, .2),
    1px -25px 60px rgba(16, 16, 16, .4);
  }
  &__group {
    width: 1700px;
    margin-left: 300px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  &__img {
    width: 15%;
    height: 0;
    padding-top: calc(3 / 2 * 15%);
    border-radius: 5px;
    box-shadow: 8px 8px 60px rgba(0, 0, 0, .5);
    cursor: pointer;
    &--1 {
      background-image: url(https://drive.google.com/uc?export=view&id=1TBVd7oaTcs6bgDuOpA6GsNA_yEHe8BN4);
    }
    &--2 {
      background-image: url(https://drive.google.com/uc?export=view&id=1rnWwREMXqRMWyzJCSef6xb14G4K_pq8M);
    }
    &--3 {
      background-image: url(https://drive.google.com/uc?export=view&id=1RKsZ8VpPF8ScRwIJ-hVI4Zr2eRAB5HLt);
    }
    &--4 {
      background-image: url(https://drive.google.com/uc?export=view&id=1Pg0Oox_NaegNZftloIbE-jMd4J7nvG4S);
    }
  }
}

// horizontal scroll
window.addEventListener("mousewheel", e => {
  if (e.deltaX === 0) {
    e.stopPropagation();
    e.preventDefault();
    window.scrollBy(e.deltaY, 0);
  }
});

// tilt hover effect -> Tilt.js