scroll-margin-inline

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组成特性
句法
描述
形式定义
形式句法
范例
规范
浏览器兼容性
相关话题

scroll-margin-inline shorthand property sets the scroll margins of an element in the inline dimension.

组成特性

此特性是下列 CSS 特性的简写：

句法

/* <length> values */
scroll-margin-inline: 10px;
scroll-margin-inline: 1em .5em ;
/* Global values */
scroll-margin-inline: inherit;
scroll-margin-inline: initial;
scroll-margin-inline: unset;

值

<length>

描述

The scroll-margin values represent outsets defining the scroll snap area 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.

形式定义

初始值	`0`
适用于	所有元素
继承	no
计算值	如指定
动画类型	by computed value type

形式句法

<length>{1,2}

范例

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 right 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: end;
}
.scroller > div:nth-child(2n) {
  background-color: #fff;
  color: #663399;
}

The most relevant part here is scroll-snap-align : end , which specifies that the right-hand edges (the "ends" 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: 1rem;
}
.scroller > div:nth-child(3) {
  scroll-margin-inline: 2rem;
}

This means that when scrolling past the middle child elements, the scrolling will snap to 1rem outside the inline end edge of the second <div> ，和 2rems outside the inline end edge of the third <div> .

注意 : Here we are setting scroll-margin on the start and end of the inline axis (x in our case), but only the end edge is really relevant. It would work just as well here to only set a scroll margin on that one edge, for example with scroll-margin-inline: 0 1rem ，或 scroll-margin-inline-end : 1rem .

结果

Try it for yourself:

规范

规范	状态	注释
CSS Scroll Snap Module Level 1 The definition of 'scroll-margin-inline' in that specification.	候选推荐	初始定义

浏览器兼容性

更新 GitHub 上的兼容性数据

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`scroll-margin-inline`	Chrome 不支持 No	Edge 不支持 No	Firefox 完整支持 68	IE 不支持 No	Opera 不支持 No	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 不支持 No	Firefox Android 完整支持 68	Opera Android 不支持 No	Safari iOS 不支持 No	Samsung Internet Android 不支持 No

图例

完整支持
不支持

元数据

最后修改： Aug 7, 2020

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