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CSS scroll-margin-block Enhance Scrolling Experience
Use it to control scroll snap areas and improve user experience.
Options include length values and global values like inherit and initial.
Introduction
The scroll-margin-block
CSS property is a handy tool for web developers. It lets you set the scroll margins of an element along the block dimension, which is great for controlling the behavior of scroll snap areas. Introduced in July 2019, it’s widely supported across modern browsers, making it reliable for enhancing user experience on websites.
Baseline Availability
The scroll-margin-block
property is well-supported across many devices and browser versions. It works in:
- Google Chrome
- Microsoft Edge
- Mozilla Firefox
- Opera
- Safari
Description
The scroll-margin-block
property defines the scroll margins of an element in the block dimension. It’s useful for creating visually appealing and intuitive scrolling experiences. This property is a shorthand for scroll-margin-block-start
and scroll-margin-block-end
, allowing you to set both values in a single declaration.
Constituent Properties
The scroll-margin-block
property is a shorthand for:
-
scroll-margin-block-start:
- Defines the scroll margin at the start of the block dimension.
- Syntax:
scroll-margin-block-start: <length> | inherit | initial | revert | revert-layer | unset;
-
scroll-margin-block-end:
- Defines the scroll margin at the end of the block dimension.
- Syntax:
scroll-margin-block-end: <length> | inherit | initial | revert | revert-layer | unset;
Syntax
Here is the syntax for scroll-margin-block
:
Values
The scroll-margin-block
property accepts the following values:
-
<length>:
- Specifies the outset from the corresponding edge of the scroll container.
- Example:
scroll-margin-block: 10px;
-
Global Values:
- inherit: Inherits the value from the parent element.
- initial: Sets the property to its initial value, which is
0
. - revert: Reverts the property to the default value as specified by the user agent.
- revert-layer: Reverts the property to the default value as specified by the cascade layer.
- unset: Resets the property to its natural value.
- Example:
scroll-margin-block: inherit;
Formal Definition
The scroll-margin-block
property is formally defined as a shorthand for setting the scroll margins of an element in the block dimension. Here are the key characteristics:
- Initial Value:
scroll-margin-block-start
:0
scroll-margin-block-end
:0
- Applies To: All elements.
- Inherited: No.
- Computed Value:
scroll-margin-block-start
: as specifiedscroll-margin-block-end
: as specified
- Animation Type: By computed value type.
- Formal Syntax:
Specifications
The scroll-margin-block
property is defined in the CSS Scroll Snap Module Level 1 specification. This module outlines the behavior and usage of scroll snap properties.
- Specification: [CSS Scroll Snap Module Level 1]WebsiteUrl
Browser Compatibility
The scroll-margin-block
property is widely supported across modern browsers:
- Google Chrome: Supported since version 69.
- Microsoft Edge: Supported since version 79.
- Mozilla Firefox: Supported since version 68.
- Opera: Supported since version 56.
- Safari: Supported since version 14.1.
Example
Here’s a simple example to demonstrate the use of the scroll-margin-block
property:
HTML
In this example, scrolling through the container will snap to each .page
element with a defined margin of 90px at the block start and end, creating a visually appealing and intuitive scrolling experience.
Related Topics
To further enhance your understanding and usage of the scroll-margin-block
property, consider exploring these related topics:
- CSS Scroll Snap: Learn more about the CSS scroll snap module, which includes properties like
scroll-snap-type
,scroll-snap-align
, andscroll-snap-stop
. - Well-controlled Scrolling with CSS Scroll Snap: Explore practical examples and best practices for using CSS scroll snap to create intuitive and visually appealing scrolling interfaces.
- CSS Shorthand Properties: Understand the concept of shorthand properties in CSS, which allow you to set multiple related properties in a single declaration, making your code more concise and easier to manage.
- CSS Length Units: Familiarize yourself with the various length units available in CSS, such as
px
,em
,rem
,vh
, etc., and learn how to use them effectively to control the layout and appearance of your elements. - CSS Box Model: Deepen your understanding of the CSS box model, which defines the rectangular boxes that are generated for elements in the document tree. This knowledge is crucial for effectively using properties like
scroll-margin-block
. - CSS Writing Modes: Learn about CSS writing modes, which control the direction of text flow. Understanding writing modes is essential for correctly applying
scroll-margin-block-start
andscroll-margin-block-end
. - CSS Flexbox and Grid Layouts: Explore how
scroll-margin-block
can be integrated with CSS Flexbox and Grid layouts to create more complex and responsive designs.
By delving into these related topics, you can gain a more comprehensive understanding of CSS and how to use it effectively to create engaging and user-friendly web experiences.
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