<!-- Header -->
<header id="top">
<video autoplay loop poster="towkio.png" style="height:675px; width:100%" id="bgvid">
<source src="towkio.mp4" type="video/mp4">
<span id="logo">
<img src="img/logo.png">
</span>
</header>
我想将高度设置为 675 像素,但仍然让它跨越整个宽度,这很奇怪。
最佳答案
你是说类似的意思吗?
#video-bg {
position: fixed;
top: 0;
right: 0;
bottom: 0;
left: 0;
}
#video-bg > video {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 635px;
z-index: 1;
}
@media (min-aspect-ratio: 16/9) {
#video-bg > video {
height: 300%;
top: -100%;
}
}
@media (max-aspect-ratio: 16/9) {
#video-bg > video {
width: 300%;
left: -100%;
}
}
@supports (object-fit: cover) {
#video-bg > video {
top: 0; left: 0;
width: 100%;
height: 635px;
object-fit: cover;
}
}
#logo img {
position: fixed;
top: 50px;
left: 0;
z-index: 2;
width: 50px;
height: 50px;
}
<header id="video-bg">
<video autoplay loop poster="towkio.png" id="bgvid">
<source src="http://techslides.com/demos/sample-videos/small.mp4" type="video/mp4">
</header>
<span id="logo">
<img src="https://upload.wikimedia.org/wikipedia/commons/3/33/Vanamo_Logo.png">
</span>
关于css - 调整大小和 HTML 视频,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32555095/