div#conferencia {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
body{
    /*background-image: url(https://cdn.connectovirtual.com/urosario/induccion12021/fondoLlamada.png);*/
	background-color: #da0921;
}
.container {
    padding-right: 0px !important;
    padding-left: 0px !important;
}