* {

	top: 0px;
	margin: 0px;
}
header {
        width:100%;
        position: -webkit-sticky; /* Safari */
        position: sticky;
        top: 0;
        z-index: 1;
}
main {
	margin-left: 7%;
	width: 93%;
}
header nav {
	width:7%;
	height:100%;
	height: 80px;
	margin: auto;
	background:#01bb3f;
        z-index: 1;
        top: 0px auto;
		height: 60px; /* alto de la barra */
        position: fixed;
        box-shadow: 0 5px 10px rgb(0 0 0 / 90%);
}
.menu_bar {
	display: none;
	background:#01bb3f;
	height: 80px;
}
 span{
	font-size: 1.5rem;
}
.menu_bar img {
	float: left;
	width: 30%;
	position: absolute;
}
header nav img {
	display: block;
	width: 10px;
	height: 30px;
	position: absolute;
	z-index: 0;
	margin-top: 0px;	
}
header nav ul {
	overflow:hidden;
	list-style:none;
	margin-left:0px;
}
header nav ul li {
	float:left;
}
header nav ul li a {
	color: #fff;
	padding:10px;
	display:block;
	text-decoration:none;
}

header nav ul li span {
	margin-right:0px;
}

header nav ul li a:hover {
	background:#ffffff;
	color: #000000;
}
@media screen and (max-width:2000px ) {
	main {
		margin-left: 4%;
		width: 96%;
	}
	header nav {
		width:4%;
		height:100%;
		left:0%;
		margin-left: 0px;
		margin-top: 0px;
		position: fixed;
        box-shadow: 0 5px 10px rgb(0 0 0 / 90%);
		padding-inline-start: 0px;
	}

	header nav:hover {
		width:30%;
		min-width:150px;
		max-width:180px;
		left:0%;
		padding:0px;
		margin-top: 0px;
		position: fixed;
        box-shadow: 0 5px 10px rgb(0 0 0 / 90%);
		color:#ffffff;
	}
	header img {
		display:block;
		height: 20%;
		position: absolute;
		z-index: 1;
		margin-top: 0px;
		max-height: 50px;

	}
	.enlace-principal{
		padding-left: 5px;
	}
	.enlace-principal span{
		padding-right: 15px;
	}
	header nav ul li a{
		display:block;
		float:none;
		max-height: 35px;
		min-width: 200px;
		border-bottom:1px solid rgba(255,255,255, .3);
	}
	header nav ul li a span {
		margin-right: 20px;
	}
}
@media screen and (max-width:800px ) {
	main {
		margin-left: 6%;
		width: 94%;
	}
	header nav {
		width:6%;
		height:100%;
		left:0%;
		margin-left: 0px;
		margin-top: 0px;
		position: fixed;
        box-shadow: 0 5px 10px rgb(0 0 0 / 90%);
	}

	header nav:hover {
		width:30%;
		min-width:150px;
		max-width:180px;
		height:100%;
		left:0%;
		padding:0px;
		margin-top: 0px;
		position: fixed;
        box-shadow: 0 5px 10px rgb(0 0 0 / 90%);
		color:#ffffff;
	}
	header img {
		display:block;
		height: 20%;
		position: absolute;
		z-index: 1;
		margin-top: 0px;
		max-height: 50px;

	}
	header nav ul li a{
		display:block;
		float:none;
		max-height: 35px;
		min-width: 200px;
		border-bottom:1px solid rgba(255,255,255, .3);
		text-decoration: none;
	}
	header nav ul li a span {
		margin-right: 20px;
	}
}

@media screen and (max-width:500px ) {
	main {
		margin-left: 10%;
		width: 90%;
	}
	header nav {
		width:10%;
		height:100%;
		left:0%;
		margin-left: 0px;
		margin-top: 0px;
		position: fixed;
        box-shadow: 0 5px 10px rgb(0 0 0 / 90%);
	}

}