CSS background-attachment Property
Sets whether a background image scrolls with the page or is fixed
Syntax
background-attachment: scroll | fixed | local;Values
| Value | Description |
|---|---|
| scroll | Scrolls with the containing block (default) |
| fixed | Fixed relative to the viewport |
| local | Scrolls with the element's content |
Example
.parallax {
background-attachment: fixed;
background-size: cover;
}Understanding CSS background-attachment
The CSS background-attachment property sets whether a background image scrolls with the page or is fixed. As part of the Color & Background module in CSS, it is one of the most commonly used properties for controlling the visual presentation of web pages.
You can set background-attachment to values such as scroll, fixed, local, among others. Each value changes how the browser renders the affected element, giving you fine-grained control over your page layout and design. Choosing the right value depends on the specific design requirements of your project.
Common use cases for the background-attachment property include responsive web design, component-based layouts, and creating visually consistent interfaces across devices. It works closely with related properties like background, background-image, background-position to achieve complex styling effects. Understanding how these properties interact helps you write cleaner, more maintainable stylesheets.
Browser support for background-attachment is excellent across all modern browsers including Chrome, Firefox, Safari, and Edge. For older browsers, consider using fallback values or progressive enhancement strategies. The property can also be set dynamically via JavaScript using element.style.backgroundAttachment or the CSS custom properties (variables) approach for theming.
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