*{
	margin: 0;
	padding: 0;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}

body{
	background: #313D52;
}

header{
	width: 100%;
}

.navegacion{
	width: 100%;
	margin: 5px auto;
	background: #641c34;
}

.navegacion ul{
	list-style: none;
}

.menu > li{
	position: relative;
	display: inline-block;
}

.menu > li > a{
	display: block;
	padding: 7px 7px;
	color: #FFF;
	font-family: 'Open sans';
	text-decoration: none;
}

.menu li a:hover{
	color: #CE7D35;
	transition: all .3s;
}

/* Submenu*/

.submenu{
	position: absolute;
	background: #333333;
	width: 120%;
	visibility: hidden;
	opacity: 0;
	transition: opacity 1.5s;
}

.submenu li a{
	display: block;
	padding: 15px;
	color: #fff;
	font-family: 'Open sans';
	text-decoration: none;
}

.menu li:hover .submenu{
	visibility: visible;
	opacity: 1;
}

.menu {
  position: relative;
  z-index: 10; /* Un valor alto para que esté encima del iframe */
}

@media (max-width: 768px) {
  .menu {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .menu a {
    display: block;
    padding: 10px;
    font-size: 18px;
  }
}

.iframe-container {
  position: relative;
  z-index: 1; /* Un valor menor para que quede detrás del menú */
}

.iframe-container {
  position: relative;
  width: 100%;
  height: calc(100vh - 50px); /* resta la altura de tu menú superior */
 
}

.iframe-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}