嘿:)我正在尝试使视频适合浏览器窗口的大小,并在浏览器窗口高度的底部添加图像。因此,您获得的视频和图像是加载页面时唯一显示的内容。当您滚动dowm时,将显示该网站的内容。
我做了一些说明这个想法的事情:http://instagib.dk/JS-test/
问题是,当我开始添加网站的内容时,它出现在视频和图像下。问题似乎是我已经使它成为绝对的,超出了文档上下文。
是否有任何JS,Jquery解决方案可以读取绝对内容的高度并将内容放置在视频之后?
干杯:)
<body>
<!-- Header -->
<header class="header">
<div class="header-bg">
<div class="logo-top"></div>
</div>
<nav>
<div class="menu">
<div class="hamburger"></div>
<div class="hamburger"></div>
<div class="hamburger"></div>
<ul class="nav-list">
<li><a href="#">Projects</a></li>
<li><a href="#">Services</a></li>
<li><a href="#">Advantages</a></li>
<li><a href="#">Who are we</a></li>
<li><a href="#">Work with us</a></li>
</ul>
</div>
</nav>
</header>
<video class="intro" autoplay loop>
<source src="video/black_clouds.mp4" type="video/mp4">
<source src="video/black_clouds.webm" type="video/webm">
Your browser does not support the video tag.
</video>
<div class="intro-seperator"></div>
<!-- Main content -->
<main class="content">
</main>
<!-- Footer -->
<footer>
<small>© Crafthouse 2014</small>
</footer>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script>
$(function() {
divFade = $(".header-bg");
var toggleHeader = function(noAnimate) {
var threshold = 400,
fadeLength = 300,
opacity,
scrollTop = $(document).scrollTop();
if (scrollTop < threshold) {
opacity = 0;
} else if (scrollTop > threshold + fadeLength) {
opacity = 1;
} else {
if (noAnimate) {
opacity = 1;
} else {
opacity = (scrollTop - threshold) / fadeLength;
}
}
divFade.css("opacity", opacity);
};
toggleHeader(true);
$(window).scroll(function() {
toggleHeader();
});
});
</script>
CSS:
*,
*:before,
*:after {
box-sizing: border-box;
}
body {
font-family: 'Open Sans', sans-serif;
}
/*
========================================
Layout: Header
========================================
*/
.header {
width: 100%;
height: 60px;
position: fixed;
top: 0px;
color: #fff;
z-index: 9999;
}
.header-bg {
width: 100%;
height: 60px;
line-height: 60px;
vertical-align: middle;
background: #212121;
position: absolute;
opacity: 0;
font-size: 25px;
}
.logo-top {
background: url(../images/crafthouse-top-logo.png) no-repeat;
width: 171px;
height: 60px;
margin: 0 auto;
}
.menu {
width: 70px;
height: 60px;
padding-top: 20px;
position: absolute;
left: 8%;
}
.menu:hover {
background: #000;
}
.hamburger {
width: 30px;
height: 3px;
background: #fff;
margin: 0 auto;
margin-bottom: 5px;
}
.menu:hover .hamburger {
background: #00ff91;
}
.nav-list {
width: 150px;
margin-top:20px;
background: #000;
display: none;
padding: 20px 0 10px 18px;
text-transform: uppercase;
}
.nav-list li {
margin-bottom: 10px;
}
.nav-list li a {
color: #fff;
text-decoration: none;
font-size: 14px;
}
.nav-list li a:hover {
color: #00ff91;
}
.menu:hover .nav-list {
display: block;
}
.intro {
position: absolute;
right: 0;
bottom: 0;
min-width: 100%;
min-height: 100%;
width: auto;
height: auto;
background-size: cover;
}
.intro-seperator {
background: url(../images/seperator-brush-top.png);
height: 164px;
width: 100%;
position: absolute;
right: 0;
bottom: 0;
}
.test {
width: 100%;
height: 100%;
background: #fff;
}
/*
========================================
Layout: Content
========================================
*/
.content {
height: 2000px;
}
最佳答案
使用以下内容作为内容:
main{
position:absolute;
top:100%;
}
这会将实际内容移到视频下方(假设主要是您的内容元素)
关于javascript - 通过窗口将相对div置于绝对div生成的高度下,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/27473610/