How to hide scroll bars using HTML and CSS

In web design, scroll bars are very common elements, but sometimes we want to hide the scroll bars and use other methods to achieve scrolling. This article will introduce how to hide scroll bars using HTML and CSS.

First of all, we need to understand how the scroll bar is generated. In HTML, when the content exceeds the visible area, the browser automatically generates scroll bars. The appearance and behavior of scroll bars is determined by the operating system and browser, and different browsers and operating systems may have different scroll bar styles.

To hide the scroll bar, we need to use CSS to control the style of the scroll area. We can use the overflow property in CSS to control the overflow of content, and use the ::-webkit-scrollbar pseudo-element to control the style of the scroll bar.

First, let's take a look at how to use the overflow attribute to hide the scroll bar. We can set the overflow property of the container where the scroll bar needs to be hidden to hidden. This way, when the content overflows, the browser will not generate scroll bars, but the content will still be scrollable.

For example, the following code can be used to hide the scroll bar of a div element:

<div style="height: 200px; width: 200px; overflow: hidden;">
  ...
</div>

We can set the overflow attribute to auto instead of hidden, so that the content will only show scrolling when it overflows strip. Then we can use the ::-webkit-scrollbar pseudo-element in CSS to control the style of the scroll bar.

The following is a sample code:

<style>
  .scrollbar-container {
    height: 200px;
    width: 200px;
    overflow: auto;
  }
  
  .scrollbar-container::-webkit-scrollbar {
    width: 6px;
    height: 6px;
  }
  
  .scrollbar-container::-webkit-scrollbar-thumb {
    background-color: #888;
    border-radius: 3px;
  }
  
  .scrollbar-container::-webkit-scrollbar-track {
    background-color: #f5f5f5;
  }
</style>

<div class="scrollbar-container">
  ...
</div>

In the above code, we first create a div element that contains the content that needs to be scrolled. We set the height and width of this div element to 200px, and set its overflow property to auto, so that the scrollbar will only appear when the content overflows.

Then, we use the ::-webkit-scrollbar pseudo-element in CSS to control the style of the scroll bar. We first set the width and height of the scroll bar, and then specified the background color and border radius of the scroll bar thumb. Finally, we set the background color of the scrollbar track.

In this example, we use the ::-webkit-scrollbar pseudo-element of the WebKit browser engine to control the style of the scroll bar. If your website needs to support other browsers, you may need to use different pseudo-elements to control the style of the scroll bar.

Before we end, we need to note that most mainstream browsers currently support this method to hide the scroll bar, but it does not include some older versions of browsers such as IE and Edge. If you need to be compatible with these old browsers, version of the browser, you can use JavaScript to control the visibility of the scrollbar.

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