How to achieve horizontal scrolling effect of mouse scrolling through CSS?

CSS tips: Easily realize horizontal scrolling of the mouse wheel

In web design, we often need the mouse wheel to achieve horizontal scrolling, especially in scenarios where there is a lot of content arranged horizontally. By default, the scroll wheel usually controls portrait scrolling, and you need to hold down the Shift key to scroll horizontally, which is not convenient. While JavaScript can listen for scroll wheel events and control horizontal scrollbars, this approach may cause scrolling to be not smooth enough.

This article introduces a more elegant solution: use CSS style to achieve horizontal scrolling, without JavaScript, scrolling is smoother and more natural.

Previous JavaScript methods, such as:

 function onscroll(event){
  let left = -event.wheelDelta || event.deltaY / 2;
  templateListRef.value.scrollLeft = templateListRef.value.scrollLeft left;
}

There are performance problems and poor experience.

The core of our CSS solution is rotation:

1. Rotate container: Rotate container elements -90 degrees, transform: rotate(-90deg);
2. Rotate child elements: rotate the child elements in the container by 90 degrees, transform: rotate(90deg);

By rotating containers and child elements, the mouse’s vertical scroll is cleverly converted into visual horizontal scrolling. This method is simple and direct, avoids the performance overhead brought by JavaScript and has a better user experience. No need to monitor the scrolling wheel event, the scrolling is more natural and smoother.

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