html - How to make backgroud over video tag? -

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i tried make background on video tag opacity 0.6:

html:

<body>    <video></video> </body>

css:

body {    background: #000; opacity: 0.6; position: relative }

check out fiddle link

    .video-wrapper{width:320px;height:240px;position:relative;}     .video-overlay{background:red;opacity:0.6;position:absolute;width:100%;height:100%;top:0;left:0;}     .video-wrapper:hover .video-overlay{display:none;}

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