html - Trying to place a video in bootstrap carousel. But disappears when i set position to fixed -

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im trying place video in bootstrap carosel. trying move video around fits div @ particular responsive hieght not dimensions of video itself.

but when make video position fixed disappears. i'm not sure whats going on here.

html

            <video class="videoinsert" autoplay loop poster="~/content/video/posters/b-roll-1.jpg" muted>                 <source src="https://broken-links.com/tests/media/bigbuck.webm" type="video/webm">                 <source src="https://broken-links.com/tests/media/bigbuck.m4v" type="video/mp4" />                 browser not support video tag.             </video>          </div>        </div>     <a class="left carousel-control" href="#mycarousel" data-slide="prev">         <span class="glyphicon glyphicon-chevron-left"></span></a>     <a class="right carousel-control" href="#mycarousel" data-slide="next">         <span class="glyphicon glyphicon-chevron-right"></span></a> </div> <!-- /.carousel -->

css

#mycarousel {     overflow: hidden; } .videoinsert {     position: fixed;     -webkit-transform: translatez(0);     right: 0;      bottom: 0;     top: 0;     margin-top: 0;     min-width: 100%;      min-height: 100%;     width: 100%;      height: 100%;      background-size: cover;     overflow: hidden;     z-index: 1000;;  }

and here fiddle:

https://jsfiddle.net/neosketo/f1fa1ksj/4/

i think why video "disappears": when make video fixed new stacking context take out normal flow of be. since every element in carousel inside <div class="item"> , div doesn't have height (it grows according it's content), since video out of normal flow, div lose it's height.

here, updated demo: https://jsfiddle.net/f1fa1ksj/6/

i added fixed height div:

.item {   height: 500px; }

also have keep in mind there several overflow: hidden; properties in css of carousel, in: .carousel-inner , #mycarousel. can affect visibility of video depending on css apply it.


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