我需要一些帮助。我知道这篇文章以前已经完成,但我试过的任何内容都不适合我。所以基本上我有一个300px到250的div,我想让我的视频适合这个而不用300到250的视频。你能不能帮我谢谢! :)
body {
margin: 0;
}
#banner{
position:fixed;
margin:0;
width:300px;
height:250px;
border: 1px solid red;
}
#banner video{
position: fixed;
width: 300px !important;
height: auto !important;
background: url('//demosthenes.info/assets/images/polina.jpg') no-repeat;
background-size: cover;
transition: 1s opacity;
z-index:-1;
}
<div id="banner">
<video autoplay poster="https://s3-us-west-2.amazonaws.com/s.cdpn.io/4273/polina.jpg" id="bgvid" loop >
<!-- WCAG general accessibility recommendation is that media such as background video play through only once. Loop turned on for the purposes of illustration; if removed, the end of the video will fade in the same way created by pressing the "Pause" button -->
<source src="http://demosthenes.info/assets/videos/polina.mp4" type="video/mp4">
</video>
</div>
答案 0 :(得分:6)
视频需要尊重它的比例,对吧?我不认为你可以改变你想要的宽度和高度......你可以改变&#34;视频&#34;的宽度和高度。标签,但视频显示将保持它的比例......所以解决方案实际上是2:
首先:更改包含视频的div的宽度和高度,并使视频的比例相同:
第二:使div溢出:隐藏并增加&#34;视频&#34;的宽度标记,直到视频本身的高度到达div容器(就像在这个小提琴中)
https://jsfiddle.net/mjkvupmt/75/
#banner{
position:fixed;
margin:0;
width:300px;
height:250px;
border: 1px solid red;
overflow: hidden;
}
#banner video{
position: absolute;
width: 450px !important;
height: auto !important;
background: url('//demosthenes.info/assets/images/polina.jpg') no-repeat;
background-size: cover;
transition: 1s opacity;
z-index:-1;
}
完成后,您可以根据需要定位视频