How to set scroll bar style in css

In web pages, the scroll bar is an important component, which allows users to easily slide content in long pages. However, the scroll bars that come with browsers are not always beautiful and may affect the overall aesthetics of the web page. At this time, we can use CSS to customize the style of the scroll bar to make the entire web page look more beautiful and professional.

The first thing you need to understand is that the scroll bar is also a DOM element, which can be changed through CSS styles. Simply put, we can change the color, width, height, border, slider size, slider position and other properties of the scroll bar through CSS styles. The scroll bar style is not necessarily the same in different browsers, but most browsers support CSS to change the scroll bar style. Next, we will introduce some commonly used CSS properties for styling scroll bars.

1. scrollbar-width

By setting the scrollbar-width property, you can change the width of the browser scroll bar. This method is very effective for some simple scroll bar styles, but it may not be very practical for complex custom scroll bar styles. The implementation method is as follows:

body {
   scrollbar-width: thin; /* 设置滚动条宽度 */
}

Note that this method is applicable to the newer WebKit browser and Firefox browser.

2. scrollbar-color

By setting the scrollbar-color property, you can change the color of the scroll bar. The specific implementation method is as follows:

body {
   scrollbar-color: #999; /* 设置滚动条颜色 */
}

You can also set the color of the scroll block:

body {
   scrollbar-color: #999 #666; /* 设置滚动条和滚动块颜色 */
}

This method is also applicable to the newer WebKit browser and Firefox browser.

3. ::-webkit-scrollbar

For browsers with WebKit core, we can use the ::-webkit-scrollbar pseudo-element to set scroll bar related properties. Commonly used attributes are as follows:

::-webkit-scrollbar {
   width: 10px; /* 设置滚动条宽度 */
}

::-webkit-scrollbar-track {
   background: #eee; /* 设置滚动条背景颜色 */
}

::-webkit-scrollbar-thumb {
   background: #ccc; /* 设置滚动条滑块颜色 */
   border-radius: 5px; /* 设置滚动条滑块圆角 */
}

In this code, we use the ::-webkit-scrollbar pseudo-element to change the relevant attributes of the scroll bar. Among them, the width attribute can change the width of the scroll bar; the track attribute can set the background color of the scroll bar; the thumb attribute can set the color of the scroll block and the rounded corners of the slider.

We can also add some special effects to the slider, such as streamer effects, gradients, pictures, etc. For example:

::-webkit-scrollbar-thumb {
   background: linear-gradient(45deg, #f5f5f5, #dbdbdb); /* 渐变 */
   box-shadow: inset 1px 1px 5px rgba(0, 0, 0, 0.2), 1px 1px 5px rgba(0, 0, 0, 0.2); /* 阴影 */
   border-radius: 5px; /* 圆角 */
}

In this code, we add a gradient color and shadow effect to the slider.

In addition to the ::-webkit-scrollbar pseudo-element, the FireFox browser also supports the scrollbar pseudo-element, and its usage is similar to the ::-webkit-scrollbar pseudo-element.

In general, there are many ways to customize scroll bar styles. We can combine multiple CSS properties to achieve various cool effects. However, it should be noted that the scroll bar style needs to take into account cross-browser compatibility. Not all browsers support all styles. Therefore, choosing the appropriate CSS properties and techniques is the key to implementing custom scroll bar styles.

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