eliminate need for scrollbar css code example

Example 1: hide scrollbar css

/* Hide scrollbar for Chrome, Safari and Opera */
.scrollbar-hidden::-webkit-scrollbar {
  display: none;
}

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

Example 2: javascript hide scrollbar

// You can hide the document scrollbar with this...
document.body.style.overflow = 'hidden';
//...and unhide it with this:
document.body.style.overflow = 'visible';

// Or switch between them:
booleanCondition
  ? document.body.style.overflow = 'hidden'
  : document.body.style.overflow = 'visible';