【发布时间】：2019-10-15 09:55:25
【问题描述】：
我一直在尝试创建纯基于 CSS 的视差滚动效果（在透视、transformZ 和缩放方面，背景滚动比前景慢）。
在我在 Chrome 中测试之前，我对结果（在 Firefox 中工作）非常满意。
在 Firefox 中，我看到了完全期望的行为：屏幕显示的背景比视口大。滚动时，背景缓慢移动，文本快速移动到视图中。 当背景层底部与视口底部对齐时，滚动结束。但是在 Chrome（桌面和移动）中，我可以向下滚动很多，错位上层并向上滚动背景，显示后面的空白页。
不幸的是，我不明白哪个元素太大以至于允许进一步滚动。我只想在达到背景结束时结束滚动。似乎没有其他图层比背景延伸得更远。
我在CodePen 上设置了一个最小问题示例。它在那里显示了所需的（类似 Firefox 的）行为，但您可能希望通过复制这两个文件并在 Chrome 中测试来查看它。
<!DOCTYPE html>
<html lang='en'>
<head>
<meta charset='utf-8'>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Minimal Problem Example</title>
<link rel='stylesheet' type='text/css' href='parallax.css'>
</head>
<body>
<div class='parallaxisWrapper'>
<div class='parallaxisGroup'>
<div class='layer personalInfo-layer'>
This text should scroll up into the viewable area
</div>
<div class='layer backimage-layer'>
</div>
</div>
</div>
</body>
</html>
/*
CSS Reset
http://meyerweb.com/eric/tools/css/reset/
v2.0 | 20110126
License: none (public domain)
*/
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
margin: 0;
padding: 0;
border: 0;
font-size: 100%;
font: inherit;
vertical-align: baseline;
}
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
display: block;
}
body {
line-height: 1;
}
ol, ul {
list-style: none;
}
blockquote, q {
quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
content: '';
content: none;
}
table {
border-collapse: collapse;
border-spacing: 0;
}
/*
My example starts here
*/
.parallaxisWrapper {
/* fill screen vertically */
height: 100vh;
/* allow only vertical scrolling */
overflow-x: hidden;
overflow-y: auto;
/* shift the perspective to allow for parallax scrolling effect
(perspective - distance) / perspective = scaleFactor
distance is defined from zero layer, closer objects have to be scaled down and smaller have to be scaled up
*/
perspective: 4px;
}
.parallaxisGroup {
position: relative;
height: 100vh;
transform-style: preserve-3d;
}
[class$='-layer'] {
/* position all parallax layers absolutely */
position: absolute;
}
.personalInfo-layer {
/* keep in the default distance to scroll normally */
transform: translateZ(0) scale(1);
width: 80vw;
height: 55vh;
left: 10vw;
top: 100vh;
display: flex;
justify-content: center;
align-items: center;
font-size: 10vh;
}
.backimage-layer {
/* transform to the back to scroll slower and adjust scale */
transform: translateZ(-20px) scale(6);
background: url(http://placekitten.com/1000/1000) no-repeat center fixed;
background-size: cover;
background-attachment: scroll;
width: 100vw;
/* adjust background layer width and top anchor to cover the full scrollable background of the upper layers */
height: 116vh;
}
请不要被开头的 CSS 重置代码所迷惑。这只是一个复制的标准。此外，某些层对您来说可能是多余的。然而，这是我实际页面的调低版本。
任何有关可能导致此行为的原因或如何使 Firefox 到 Chrome 的印象一致的提示将不胜感激！
【问题讨论】：
标签： css google-chrome firefox scroll parallax