Check out example codes for "hide scrollbars". It will help you in understanding the concepts better.

Code Example 1

//Hides scrollbars but does not allow scrolling
body {
  overflow-y: hidden; /* Hide vertical scrollbar */
  overflow-x: hidden; /* Hide horizontal scrollbar */
}

//Hides scrollbars but keep the ability to scroll
/* Hide scrollbar for Chrome, Safari and Opera */
.example::-webkit-scrollbar {
  display: none;
}

/* Hide scrollbar for IE, Edge and Firefox */
.example {
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;  /* Firefox */
}

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