style.css

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

body {
  display: grid;
  place-items: top;
  height: 100vh;
  width: 1300px;
}

h1 {
  z-index: 2;
  color: #fff;
  position: absolute;
  text-align: center;
  width: 100vw;
  height: 400px;
  padding-top: 195px;
  pointer-events: none;
}

button{
  z-index: 2;
  position: absolute;
  top: 195px;
  background-color: aqua;
  border: none;
  border-radius: 10px;
  padding: 1%;
  box-shadow: 2px 2px black;
}

button:hover{
  cursor: pointer;
}

button:active{
  transform: scale(1.1);
}

#back{
  left: 1%;
}

#forward{
  right: 1%;
}

#items-wrapper {
  width: 100vw;
}

#items {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  --webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

.item {
  flex: none;
  
  width: 100%;
  height: 100%;
  
  scroll-snap-align: start;
  pointer-events: none;
}

img {
  width: 100%;
  height: 100%;

  object-fit: cover;
}