How Can I Make a Vertical Scrollbar Permanently Visible in CSS?

Inquiring About Permanent Visibility of Vertical Scrollbar with CSS Overflow: Scroll

When implementing CSS overflow-y: scroll to constrain content within an allotted height, it can be challenging to ensure users notice the presence of additional content. On macOS, Chrome and Safari conceal the vertical scrollbar until the user actively scrolls or hovers over the element. This raises the concern of whether users will immediately recognize that a div contains more content.

A Solution to Force Constant Scrollbar Display

A solution to this issue involves incorporating the following CSS:

::-webkit-scrollbar {
  -webkit-appearance: none;
  width: 7px;
}

::-webkit-scrollbar-thumb {
  border-radius: 4px;
  background-color: rgba(0, 0, 0, .5);
  box-shadow: 0 0 1px rgba(255, 255, 255, .5);
}

This CSS overrides the default styling of scrollbars on macOS browsers. By setting -webkit-appearance to none, the browser's default styling is disabled. The width property specifies the desired width of the scrollbar, and the border-radius property adds a rounded shape to the scroll thumb. The background-color and box-shadow properties provide a custom appearance, enhancing the visibility of the scrollbar.

By integrating this CSS, the vertical scrollbar will remain visible even when the mouse cursor is not hovering over the div, ensuring users clearly see that additional content is available. This solution addresses the challenge posed by macOS's default behavior and improves the user experience by providing a permanent cue indicating scrollable content.

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