当包裹在"block"元素中时，一切都会消失

Question

我正在使用我在代码笔中找到的视差 3D 效果。但是，我需要在所有 html 周围添加一个额外的包装器。当我将 html 内容包装在<div>时，一切都消失了。当我把它包装在一个<span>标签中时，一切都很好。此外，如果我将该<span>标签设置为display:block;一切都会再次消失。

为什么在包装在块元素中时会发生这种情况？

谢谢！

https://codepen.io/anon/pen/JapeJX

Answer 1

添加display: block时，请确保 u 将其高度设置为100%，因为它的内部元素的高度设置为%.

结帐 https://stackoverflow.com/a/5658062/7333443

代码笔：https://codepen.io/anon/pen/QVQJPR

!(function ($doc, $win) {
var screenWidth = $win.screen.width / 2,
screenHeight = $win.screen.height / 2,
$elems = $doc.getElementsByClassName("elem"),
validPropertyPrefix = "",
otherProperty = "perspective(1000px)",
elemStyle = $elems[0].style;
if (typeof elemStyle.webkitTransform == "string") {
validPropertyPrefix = "webkitTransform";
} else if (typeof elemStyle.MozTransform == "string") {
validPropertyPrefix = "MozTransform";
}
$doc.addEventListener("mousemove", function (e) {
var centroX = e.clientX - screenWidth,
centroY = screenHeight - (e.clientY + 13),
degX = centroX * 0.02,
degY = centroY * 0.01,
$elem;
for (var i = 0; i < $elems.length; i++) {
$elem = $elems[i];
$elem.style[validPropertyPrefix] =
otherProperty + "rotateY(" + degX + "deg)  rotateX(" + degY + "deg)";
}
});
})(document, window);

/* CREDITS TO DESKTOPOGRAPHY FOR IMAGE USED */
html,
body {
width: 100%;
height: 100%;
}
body {
background: #004382;
overflow: hidden;
}
.wrapper {
transform-style: preserve-3d;
margin: 0 auto;
max-width: 982px;
width: 100%;
height: 100%;
position: relative;
display: flex;
justify-content: center;
align-self: center;
background: url("http://portalpacific.net/img/desk/icon-circles.png")
no-repeat center center;
background-size: contain;
}
.bloc {
height: 100%;
width: 100%;
position: relative;
display: flex;
justify-content: center;
align-self: center;
background-size: contain;
background-position: center;
}
.content {
transform: translateZ(80px) scale(1);
-webkit-transform: translateZ(80px) scale(1);
height: 100%;
width: 100%;
max-width: 720px;
position: absolute;
margin: auto;
color: #fff;
z-index: 3;
}
.content1 {
background: url("http://portalpacific.net/img/desk/Website.png") no-repeat;
background-position: center;
max-width: 982px;
width: 100%;
height: 100%;
position: relative;
display: flex;
justify-content: center;
align-self: center;
background-size: contain;
}
.content p:nth-of-type(1) {
font-size: 36px;
line-height: 60px;
position: absolute;
}
.content p:nth-of-type(2) {
position: absolute;
}
.block {
display: block;
height: 100%;
}

<span class="block">
<div class="wrapper elem" style="transform: perspective(700px) rotateY(0deg) rotateX(0deg);">
<div class="bloc">
<div class="content content1"></div>
<div class="content content2">
</div>
</div>
</div>
</span>