A scrollbar is a graphical user interface used to represent a document or webpage that is larger than the visible area. By default, web browsers provide a scrollbar with a predefined style, but with HTML and CSS, you can create a custom scrollbar that matches your website’s design and layout.
The scrollbar element has various pseudo-elements such as ::-webkit-scrollbar, ::-webkit-scrollbar-track, ::-webkit-scrollbar-thumb, and ::-webkit-scrollbar-button that can be used to apply different styles. You can customize the scrollbar’s width, color, background, border, and other properties to match your website’s design.
It is important to note that custom scrollbars are not supported in all browsers, and the level of customization you can achieve may vary depending on the browser.
Approach: To create a custom scrollbar using HTML and CSS, you can follow these general steps:
- Create a container element that will hold the content and the scrollbar. This can be a div or any other HTML element.
- Set the height of the container element to a fixed value, and add overflow-y: scroll to enable the scrollbar. This will allow the content to be scrolled vertically.
- Use CSS to style the scrollbar elements, such as ::-webkit-scrollbar, ::-webkit-scrollbar-track, ::-webkit-scrollbar-thumb, and ::-webkit-scrollbar-button for WebKit-based browsers, and ::-moz-scrollbar, ::-moz-scrollbar-track, ::-moz-scrollbar-thumb, and ::-moz-scrollbar-button for Firefox.
- Customize the scrollbar’s width, color, background, border, and other properties using CSS.
- Add any additional styling, such as hover and active states for the scrollbar elements, to enhance the user experience.
- Finally, test the custom scrollbar in different web browsers to ensure that it works as intended and that it is visually appealing.
Note: Not all browsers support custom scrollbars using CSS, so it’s important to provide fallback styles for browsers that do not support them. You can do this by using conditional CSS statements or JavaScript to detect the user’s browser and apply different styles accordingly.
Example: This example shows the use of the above-explained approach.
<!DOCTYPE html> < html lang = "en" >
< head >
< meta charset = "UTF-8" />
< meta http-equiv = "X-UA-Compatible" content = "IE=edge" />
< meta name = "viewport" content =
"width=device-width, initial-scale=1.0" />
< title >
How to create a custom scrollbar
using HTML and CSS?
</ title >
< style >
.scroll-container {
height: 300px;
overflow-y: scroll;
}
.scroll-container::-webkit-scrollbar {
width: 12px;
}
.scroll-container::-webkit-scrollbar-track {
background: #f1f1f1;
}
.scroll-container::-webkit-scrollbar-thumb {
background: #888;
}
.scroll-container::-webkit-scrollbar-thumb:hover {
background: #555;
}
.scroll-container::-webkit-scrollbar-button {
display: none;
}
</ style >
</ head >
< body >
< div class = "scroll-container" >
<!-- Content goes here -->
< strong >What is Data Structure?</ strong >
< p >
A data structure is defined as a particular
way of storing and organizing data in our
devices to use the data efficiently and
effectively. The main idea behind using
data structures is to minimize the time
and space complexities. An efficient data
structure takes minimum memory space and
requires minimum time to execute the data.
</ p >
< strong >What is Algorithm?</ strong >
< p >
Algorithm is defined as a process or set
of well-defined instructions that are
typically used to solve a particular group
of problems or perform a specific type of
calculation. To explain in simpler terms,
it is a set of operations performed in a
step-by-step manner to execute a task.
</ p >
< strong >How to start learning DSA?</ strong >
< p >
The first and foremost thing is dividing
the total procedure into little pieces
which need to be done sequentially. The
complete process to learn DSA from
scratch can be broken into 4 parts:
</ p >
< li >Learn about Time and Space complexities</ li >
< li >
Learn the basics of individual
Data Structures
</ li >
< li >Learn the basics of Algorithms</ li >
< li >Practice Problems on DSA</ li >
< strong > 1. Learn about Complexities</ strong >
< p >
Here comes one of the interesting and
important topics. The primary motive to
use DSA is to solve a problem effectively
and efficiently. How can you decide if a
program written by you is efficient or
not? This is measured by complexities.
Complexity is of two types:
</ p >
< li >
< strong >Time Complexity:</ strong > Time
complexity is used to measure the amount
of time required to execute the code.
</ li >
< li >
< strong >Space Complexity:</ strong >
Space complexity means the amount of
space required to execute successfully
the functionalities of the code. You
will also come across the term Auxiliary
Space very commonly in DSA, which refers
to the extra space used in the program
other than the input data structure.
</ li >
< p >
Both of the above complexities are
measured with respect to the input
parameters. But here arises a problem.
The time required for executing a code
depends on several factors, such as:
</ p >
< li >
The number of operations performed
in the program
</ li >
< li >The speed of the device, and also</ li >
< li >
The speed of data transfer if being
executed on an online platform.
</ li >
</ div >
</ body >
</ html >
|
Output:
Supported Browser: Custom scrollbars are supported in several popular web browsers, but their level of support may vary depending on the browser.
- Google Chrome
- Safari
- Opera
- Mozilla Firefox
Conclusion: Customizing scrollbars with HTML and CSS is a great way to add a personalized touch to your website’s design. By using the various pseudo-elements available for the scrollbar, you can change the appearance of the scrollbar to match your website’s color scheme and layout.