我正在学习网络开发并尝试构建网站。我正在尝试使用 YouTube 视频制作旋转木马。我所拥有的正在运行，但它拒绝根据我的需要调整大小。
这就是我得到的。宽但短的视频尺寸。
但这就是我想要的，最接近全屏，但我想保留轮播中的左/右导航并让它们出现在视频内容的顶部。
这是我的代码:请看一下:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<style>
.carousel-inner > .item > iframe,
.carousel-inner > .item > a > img {
width: 100%;
margin: auto;
}
</style>
</head>
<body style="height:100%;">
<div style="height:100%;">
<div id="myCarousel" class="carousel slide" data-ride="carousel" style="height:100%;">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
<li data-target="#myCarousel" data-slide-to="1"></li>
<li data-target="#myCarousel" data-slide-to="2"></li>
<li data-target="#myCarousel" data-slide-to="3"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox" style="height:100%;">
<div class="item active" style="height:100%;">
<iframe width="100%" height="100%" src="https://www.youtube.com/embed/UTt33udwRw0?autoplay=1" frameborder="0" allowfullscreen></iframe>
</div>
<div class="item" style="height:100%;">
<iframe width="100%" height="100%" src="https://www.youtube.com/embed/UTt33udwRw0?autoplay=1" frameborder="0" allowfullscreen></iframe>
</div>
<div class="item" style="height:100%;">
<iframe width="100%" height="100%" src="https://www.youtube.com/embed/UTt33udwRw0?autoplay=1" frameborder="0" allowfullscreen></iframe>
</div>
<div class="item" style="height:100%;">
<iframe width="100%" height="100%" src="https://www.youtube.com/embed/UTt33udwRw0?autoplay=1" frameborder="0" allowfullscreen></iframe>
</div>
</div>
<!-- Left and right controls -->
<a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
</body>
</html>
最佳答案
height:100% 是相对于父元素的。在这种情况下，html 是父元素并且没有定义的高度。如果将 height:100%; 添加到 html 标签的 CSS 中，它应该可以工作:
<!DOCTYPE html>
<html lang="en" style="height:100%;">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<style>
.carousel-inner > .item > iframe,
.carousel-inner > .item > a > img {
width: 100%;
margin: auto;
}
</style>
</head>
<body style="height:100%;">
<div style="height:100%;">
<div id="myCarousel" class="carousel slide" data-ride="carousel" style="height:100%;">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
<li data-target="#myCarousel" data-slide-to="1"></li>
<li data-target="#myCarousel" data-slide-to="2"></li>
<li data-target="#myCarousel" data-slide-to="3"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox" style="height:100%;">
<div class="item active" style="height:100%;">
<iframe width="100%" height="100%" src="https://www.youtube.com/embed/UTt33udwRw0?autoplay=1" frameborder="0" allowfullscreen></iframe>
</div>
<div class="item" style="height:100%;">
<iframe width="100%" height="100%" src="https://www.youtube.com/embed/UTt33udwRw0?autoplay=1" frameborder="0" allowfullscreen></iframe>
</div>
<div class="item" style="height:100%;">
<iframe width="100%" height="100%" src="https://www.youtube.com/embed/UTt33udwRw0?autoplay=1" frameborder="0" allowfullscreen></iframe>
</div>
<div class="item" style="height:100%;">
<iframe width="100%" height="100%" src="https://www.youtube.com/embed/UTt33udwRw0?autoplay=1" frameborder="0" allowfullscreen></iframe>
</div>
</div>
<!-- Left and right controls -->
<a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#myCarousel" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
</body>
</html>我还建议使用 style 标签或外部样式表而不是内联 CSS，因为它更易于管理。
关于javascript - 为什么我的 YouTube 嵌入拒绝在视频轮播中调整大小？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40598037/