In today's web design landscape, visual appeal and user-friendliness are crucial elements. One intriguing and effective way to achieve dynamic and visually attractive design is by creating a fixed background effect while scrolling. This effect, also known as "parallax scrolling" or "fixed background," adds depth and dimension to a web page, enhancing the user experience. In this article, you will learn how to implement this effect using CSS.

Basic Implementation

To create a fixed background effect, it's essential to utilize the CSS property background-attachment. This property determines whether the background of a web page should move along with the content or remain fixed.

Code 1: Basic Usage

.selector {
  background-image: url('path/to/image.jpg');
  background-size: cover;
  background-attachment: fixed;
}

In this example, .selector refers to the HTML element to which you want to assign the fixed background effect. The background-image property sets the image you want to use as the background. background-size: cover; ensures that the image covers the entire element without distortion. And the crucial background-attachment: fixed; property causes the background to remain fixed while the content above it is scrollable.

Advanced Techniques

For achieving more advanced effects, you can combine the background-attachment property with other CSS properties.

Code 2: Parallax Effect

To create a parallax effect, you can use multiple sections with different background images, each set with the background-attachment property set to fixed. This creates an illusion of depth.

.section {
  height: 100vh;
  background-image: url('path/to/image.jpg');
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

In this example, .section represents a class used for various sections of the page. Each section has its background image, creating a parallax effect upon scrolling.

Optimization and Compatibility

When implementing the fixed background effect, it's essential to consider page performance and compatibility with various browsers. Some older browsers may encounter issues with the fixed background effect, so it's advisable to test the page across different environments and potentially use polyfills for backward compatibility.

The fixed background effect while scrolling is an excellent way to add visual interest and depth to a website. With the right use of CSS and suitable image selection, you can create engaging and user-friendly web pages. However, it's also crucial to remember optimization and testing to ensure your site remains accessible and functional for all users.