Adjust the scroll bar to move in the reverse direction

I'm trying to modify the behavior of an overlay div that moves when scrolling. Currently, it works as expected, but I want the scroll bar to move in the opposite direction. For example, when I scroll the content to the right, I want the scroll bar to move to the left instead of with the default movement. Is there a way to achieve this?

Answer №1

If you want to create a unique scrollbar effect where it moves in the opposite direction of the content scroll, you can achieve this using JavaScript. Below is an example of how you can implement this custom scrollbar behavior:

HTML:

<div id="custom-scrollbar">
  <!-- Your Content Here -->
</div>

JavaScript:

const customScrollbar = document.getElementById('custom-scrollbar');

customScrollbar.addEventListener('scroll', function() {
  // Calculate the percentage of scrollbar position
  const maxScrollLeft = customScrollbar.scrollWidth - customScrollbar.clientWidth;
  const scrollPercentage = (customScrollbar.scrollLeft / maxScrollLeft) * 100;

  // Calculate new scrollbar position in the opposite direction
  const newScrollLeft = (100 - scrollPercentage) * maxScrollLeft / 100;

  // Update the custom scrollbar position
  customScrollbar.scrollLeft = newScrollLeft;
});

In this code snippet, we are listening for scroll events on the 'custom-scrollbar' element. When a user scrolls, we calculate the current scrollbar position as a percentage by dividing the scroll left value by the maximum scroll value. Then we compute the new scroll position in the reverse direction by subtracting the scroll percentage from 100 and multiplying it by the maximum scroll value divided by 100. Finally, we update the scrollbar position by setting the scrollLeft property of the 'custom-scrollbar' element to the new scroll position.

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