video铺满高度，去掉视频黑边，使用视频不跟随窗口放大缩小

<view class="bannerlogo">
<video class="bannerVideo" loop autoplay muted :controls="false" show-center-play-btn="false"
show-play-btn="false" show-fullscreen-btn="false" show-progress="false" object-fit="cover"
src="https://n.sigmob.cn/www/web/58/ABUIABA6GAAg9fWymwYolOud0QE.mp4">
</video>

.bannerlogo {
width: 100%;
height: 1000rpx;
position: relative;
left: 0rpx;
top: 0rpx;
overflow: hidden;
background-color: #4b4b4b;
margin: 0 auto;
}

.bannerVideo {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
pointer-events: none;
}