video#bgvid { 
    position: fixed;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -100;
    -webkit-transform: translateX(-50%) translateY(-50%);
    transform: translateX(-50%) translateY(-50%);
    /*background: url(polina.jpg) no-repeat;*/
    background-size: cover; 
}

.contenedor{
    width: 100%;
    height: 100%;
    overflow-y: scroll;
    background: url(../imagenes/fd_video.png) repeat;
    display: block;
    position: absolute;
    text-align: center;
    top: 0;
    left: 0;
}


.redes{
    display: block;
    width: 100%;
    text-align: center;
}

.redes a{
    max-width: 70px;
    display: inline-block;
    margin: 10px 20px;
}

.redes a img{
    max-width: 100%;
    height: auto;
}

@media screen and (max-width: 800px) {
    .cabeza{
        max-width: 300px;
        height: auto;
    }
    .contenedor{
        background: url(../imagenes/fb-mobil.png);
        overflow: visible;
    }
}