CSS快照滚动工作仅需要什么? [英] What are the bare necessities for CSS snap scroll to work?

问题描述

我一直在尝试实现一个超级简单的水平快照滚动(如此处所示: https://css-tricks.com/practical-css-scroll-snapping )，但我一直在失败.我可能在这里搜索了所有问题和答案，但没有帮助.

I've been trying to implement a super simple horizontal snap scroll (as shown here: https://css-tricks.com/practical-css-scroll-snapping ) yet I am consistently failing at that. I've probably searched through all the questions and answers here but none was of help.

我的代码非常简单，我只在父级上声明 scroll-snap-type:y必选； ，在父类上声明 scroll-snap-align:center; 孩子.而且我非常确定这不是浏览器问题(因为我已经在许多不同的浏览器中进行过尝试).我在这里想念什么?还是我不明白?

My code is very simple, I am only declaring scroll-snap-type: y mandatory; on the parent and scroll-snap-align: center; on the child. And I am pretty sure it's not a browser issue (since I've tried it with many different browsers). What am I missing here? Or what do I not understand?

这是我的(无效的)CodePen: https://codepen.io/anon/pen/XyNNGY

Here's my (not working) CodePen: https://codepen.io/anon/pen/XyNNGY

html:

<div class='parent'>
  <div class='child'>Section 1</div>
  <div class='child two'>Section 2</div>
  <div class='child'>Section 3</div>
</div>

css:

  body {
    margin: 0;
  }

  .parent {
    scroll-snap-type: y mandatory;
  }

  .child {
    scroll-snap-align: center;
    width: 100vw;
    height: 100vh;
    background-color: pink;
  }

  .two {
    background-color: crimson;
  }

已经感谢一百万.

推荐答案

您指定为滚动捕捉容器的元素必须是滚动条附加到的元素.在您的情况下，父元素没有滚动条-滚动条属于视口，而父元素超出视口的大小而未生成自己的滚动条.因此，应该将 scroll-snap-type 属性应用于 body (或 html )，而不是父项:

The element you designate as the scroll snap container needs to be the one that the scrollbar is attached to. In your case, the parent element doesn't have a scrollbar — the scrollbar belongs to the viewport and the parent is extending past the size of the viewport without generating its own scrollbar. The scroll-snap-type property should therefore be applied to body (or html), not the parent:

body {
  margin: 0;
  scroll-snap-type: y mandatory;
}

.child {
  scroll-snap-align: center;
  width: 100vw;
  height: 100vh;
  background-color: pink;
}

.two {
  background-color: crimson;
}

<div class='parent'>
  <div class='child'>Section 1</div>
  <div class='child two'>Section 2</div>
  <div class='child'>Section 3</div>
</div>

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