<div class="backgroundvideo">
<video preload="auto", autoplay playsinline loop="loop", muted ><source src="http://srv175538.hoster-test.ru/test2.mp4">
</video>
</div>

<style>@media (min-width: 250.98px)
{
.backgroundvideo video{
heigth:100%;
}
}


@media (min-width: 479.98px)
{
.backgroundvideo video{
width:400px;
}
}



@media (min-width: 639.98px) {

.backgroundvideo video{
width: 500px;
}
}


@media (min-width: 959.98px) {

.backgroundvideo video{
width: 800px;
}
}

@media (min-width: 1199.98px) {

.backgroundvideo video{
width: 100%;
}

}


</style>