* {
    margin:0;
    padding:0;
}


body {
	background-color:#cccccc;
}

header {
	width:100%;
}

header nav {
	width:90%;
	max-width:2000px;
	margin:20px auto;
	background:#152d69;
}

.menu_bar {
	display:none;
}

.logo {
	display:block;
	float:left;
	width:400px;
	height: 60px;
	z-index: 9999;
}

header nav ul {
	overflow:hidden;
	list-style:none;

}

header nav ul li {
float: left;
}

.estilo-menu {
	padding:18px;
	justify-content: flex-end;
	display:flex;
}

header > nav > ul > li > ul {
	display:none;
}


header nav ul li a {
	color:#fff;
	padding:20px;
	display:block;
	text-decoration:none;
}

header nav ul li span {
	margin-right:10px;
}

header nav ul li a:hover {
	background:#02549e;
}

section {
	padding:20px;
}

@media screen and (max-width:1264px){
	
	header nav {
		width:auto;
		height:100%;
		left:-100%;
		margin:0;
		position: fixed;
		z-index: 1000;
	}
	header nav ul li {
		display:block;
		float:none;
		border-bottom:1px solid rgba(255,255,255, .3);
	}

	.menu_bar .bt-menu img {
	    height:50px;
    }

	.logo {
		display:none;
	}

	.menu_bar {
		display:block;
		width:100%;
		background:#ccc;
	}

	.menu_bar .bt-menu {
		display:block;
		padding:20px;
		background:#152d69;
		color:#fff;
		text-decoration:none;
		font-weight:bold;
		font-size:25px;
		-webkit-box-sizing:border-box;
		-moz-box-sizing:border-box;
		box-sizing:border-box;
	}

	.menu_bar span {
		float:right;
		font-size:40px;
	}

}