Video tag to fill 100% div regardless of ratios

问题

I am tying to have a video tag to fill 100% of a div:

a) it doesn't need to keep the ratios(otherwise we need to use the overflow:none);

b) fill a div, not the whole background;

c) it would be a plus to be responsible. Now it is as long as you re-size window diagonally. Keeping height and re-sizing horizontally cuts the video.

I have tried dozens if not hundreds of alternative, and all of them keep the initial video ratio.

it works in the fidlle .... maybe because the screen is small, maybe because fiddle is a better browser...

<body>
<div class="wrapper">
    <div class="header">
     .....
    </div>
    <div class="out-video">
        <video autoplay loop poster="mel.jpg" id="bgvid" width="100%" height="100%">
            <source src="http://www.mysite.braaasil.com/video/mel.webm" type="video/webm">
            <source src="http://www.mysite.braaasil.com/video/mel.mp4" type="video/mp4">
        </video>
     </div>
</div>

The site is here but as I try the solutions, it will change... There is a right and left sidebar empty. I would like the video to fill the whole width. When it covers the div, the height change and the video does not show in full. I would like something like the background-size 100% 100% that stretches the images to the end of the div, but it does not work for video.

Thank you for any suggestion in advance.

PS. It seems that android family does not play the video!

回答1:

You can use a solution like this one. Ratio dont change, but you can lost the right part of the video.

video#bgvid {
    position: absolute;
    z-index: 0;
    background: url(mel.jpg) no-repeat;
    background-size: 100% 100%;
    top: 0px;
    left: 0px; /* fixed to left. Replace it by right if you want.*/
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
}

The video will be fix to top left corner. If you want to improve it, I think you will need some JavaScript.

Edit :

Just a find a solution with JQuery who can fit your need : simulate background-size:cover on <video> or <img>

Demo

回答2:

Use object-fit css property, though there is no support for IE, but it's still quite reasonable to be used for <video>, <img> tags.

Check CanIUse for Browser Support, and CSS-Tricks for usage.

来源：https://stackoverflow.com/questions/22874155/video-tag-to-fill-100-div-regardless-of-ratios

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