scroll-margin-inline-start - CSS: Cascading Style Sheets 编辑
The scroll-margin-inline-start
property defines the margin of the scroll snap area at the start of the inline dimension that is used for snapping this box to the snapport. The scroll snap area is determined by taking the transformed border box, finding its rectangular bounding box (axis-aligned in the scroll container’s coordinate space), then adding the specified outsets.
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.
Syntax
/* <length> values */
scroll-margin-inline-start: 10px;
scroll-margin-inline-start: 1em;
/* Global values */
scroll-margin-inline-start: inherit;
scroll-margin-inline-start: initial;
scroll-margin-inline-start: unset;
Values
<length>
- An outset from the inline start edge of the scroll container.
Formal definition
Initial value | 0 |
---|---|
Applies to | all elements |
Inherited | no |
Computed value | as specified |
Animation type | by computed value type |
Formal syntax
<length>
Examples
Simple demonstration
This example implements something very similar to the interactive example above, except that here we'll explain to you how it's implemented.
The aim here is to create four horizontally-scrolling blocks, the second and third of which snap into place, near but not quite at the left of each block.
HTML
The HTML that represents the blocks is very simple:
<div class="scroller">
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
</div>
CSS
Let's walk through the CSS. the outer container is styled like this:
.scroller {
text-align: left;
width: 250px;
height: 250px;
overflow-x: scroll;
display: flex;
box-sizing: border-box;
border: 1px solid #000;
scroll-snap-type: x mandatory;
}
The main parts relevant to the scroll snapping are overflow-x: scroll
, which makes sure the contents will scroll and not be hidden, and scroll-snap-type: x mandatory
, which dictates that scroll snapping must occur along the horizontal axis, and the scrolling will always come to rest on a snap point.
The child elements are styled as follows:
.scroller > div {
flex: 0 0 250px;
width: 250px;
background-color: #663399;
color: #fff;
font-size: 30px;
display: flex;
align-items: center;
justify-content: center;
scroll-snap-align: start;
}
.scroller > div:nth-child(2n) {
background-color: #fff;
color: #663399;
}
The most relevant part here is scroll-snap-align: start
, which specifies that the left-hand edges (the "starts" along the x axis, in our case) are the designated snap points.
Last of all we specify the scroll margin-values, a different one for the second and third child elements:
.scroller > div:nth-child(2) {
scroll-margin-inline-start: 1rem;
}
.scroller > div:nth-child(3) {
scroll-margin-inline-start: 2rem;
}
This means that when scrolling past the middle child elements, the scrolling will snap to 1rem
outside the inline start edge of the second <div>
, and 2rems
outside the inline start edge of the third <div>
.
Result
Try it for yourself:
Specifications
Specification | Status | Comment |
---|---|---|
CSS Scroll Snap Module Level 1 The definition of 'scroll-margin-inline-start' in that specification. | Candidate Recommendation | Initial definition |
Browser compatibility
BCD tables only load in the browser
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
See also
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论