.header {
    background: url(fondo3.jpg);
    background-size: cover;
    min-height: 100vh;
}
.header .navbar {
    background-color: transparent;
}

.header .navbar {
    background-color: white;
    opacity: 0.8;
}

/*.video {
 position: absolute;
 left: 0;
 top: 0;
 width: 100%;
 height: auto;
 z-index: -10;
 visibility: visible;
 }*/
 
 .contenido__video{
    /*background: #7DD174;*/
    overflow: fixed;
    position: static;
    top: 55px;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: -1;
   }
   
   /* Estilos para la etiqueta "video" con la calse (.video)  */
   .video{
    position: absolute;
    max-width: 300%;
    width: 100%;
    
   }
   
   /* media queries (personalizarlo a su antojo)*/
   @media(min-width: 901px){
    .video{
        top: 55px;
     width: 100%;
     height: auto;
    }
   }
   @media(max-width: 900px){
    .video{
        top: 55px;
     width: 100%;
    }
   }
   @media(max-width: 650px){
    .video{
        top: 55px;
     width: 100%;
     height: 100%;
    }
   }
   @media(max-width: 480px){
    .video{ 
        top: 55px;
     width: 100%;
     height: 70%;
     
     
    }
   }