Scroll-Snap-Align is a CSS property that allows web developers to control the alignment of scroll positions when scrolling through a container element. This property is used in conjunction with the Scroll-Snap-Type property to create a smooth and intuitive scrolling experience for users.
The Scroll-Snap-Align property specifies the alignment of the snap points within the container element. Snap points are the positions at which the container element stops scrolling and snaps to a specific point. The Scroll-Snap-Align property can be set to one of three values: start, center, or end.
When set to start, the snap points will align to the start of the container element. When set to center, the snap points will align to the center of the container element. When set to end, the snap points will align to the end of the container element.
Here are some examples of how to use the Scroll-Snap-Align property:
<div style="scroll-snap-type: y mandatory; scroll-snap-align: start;">
<img src="image1.jpg">
<img src="image2.jpg">
<img src="image3.jpg">
</div>
In this example, the container element is set to scroll vertically (y) and the Scroll-Snap-Type property is set to mandatory, which means that the container element will snap to the nearest snap point. The Scroll-Snap-Align property is set to start, which means that the snap points will align to the start of the container element.
<div style="scroll-snap-type: x mandatory; scroll-snap-align: center;">
<img src="image1.jpg">
<img src="image2.jpg">
<img src="image3.jpg">
</div>
In this example, the container element is set to scroll horizontally (x) and the Scroll-Snap-Type property is set to mandatory. The Scroll-Snap-Align property is set to center, which means that the snap points will align to the center of the container element.
Overall, the Scroll-Snap-Align property is a useful tool for creating a smooth and intuitive scrolling experience for users. By controlling the alignment of snap points within a container element, web developers can create a more polished and professional-looking website.