* {
	margin:0;
	padding:0;
	box-sizing: border-box;
	font-family: sans-serif;
}

.itireleng-header{
	      width:100%;
		  height:227px;
		  background:url("itireleng_header.png");
		  background-repeat:no-repeat;
		  background-position:100% 100%;
		  background-size:100%;
		  background-size: 100% 227px; /* Width: 300px, Height: 200px */

}
@media screen and (max-width:748px) {
  .itireleng-header{   width:100%;
		               background:url("itireleng_header.png");
		               background-repeat:no-repeat;
		               background-position:100% 100%;
		               background-size:100%;
		               height:150px;
		               background-size: 100% 100px; /* Width: 300px, Height: 200px */
                                    
  }
	    
}	

nav {
	background-color:teal;
	padding:0px 30px;
	position:relative;
	z-index:10;
}

nav:after {
	content: '';
	clear : both ;
	display: table;
	margin-left: 40px;
	
}

nav ul {
	float: left;
	list-style: none ;
	margin-right: 40px;
	position: relative;
	
	
}

nav ul li{
	float: left;
	display: inline-block;
	background-color:teal;
	margin: 0px 5px;
	
}

nav ul li a{
	color: white;
	text-decoration:none;
	line-height: 70px;
	font-size:18px;
	padding : 8px 15px;
	
}

nav ul li a:hover{
	color: white;
	border-radius: 5px;
	box-shadow: 0px 0px 5px #DAA520,
	            0px 0px 5px #FFD700;
}  

 nav ul ul li a:hover{
	color: yellow;
	border-radius: 5px;
	box-shadow: 0px 0px 5px #DAA520,
	            0px 0px 5px #FFD700;
}       

nav ul ul{
	position: absolute;
	top: 90px;
	opacity: 0px;
	visibility: hidden;
	transition: top .2s;
	
}

nav ul li:hover > ul {
	top: 70px;
	opacity : 1px;
	visibility: visible;
}



nav ul ul li{
	position: relative;
	margin: 0px;
	width: 250px;
	float: none;
	display: list-item;
	border-right:1px solid ;
	border-bottom:1px solid white;
	
}



nav ul ul ul li{
	position: relative;
	top: -70px;
	left:250px;
	float: none;
	display: list-item;
	border-right:1px solid white;
	border-bottom:1px solid white;
}
.show, .icon, input {
	display:none;
}





@media all and (max-width:990px ) {
	
	nav 
	nav ul {
		margin-right: 0px;
		float:left;
	}
	
	nav ul ul {
		top:70px;
		position:static;
		border-top:none;
		float:none;
		display:none;
		opacity: 1;
		visibility:visible;
	}
	
	nav ul li, nav ul ul li {
		display: block;
		width: 100%;
	}
	
	
	nav ul ul ul li {
		position:static;
	}
	
	nav ul ul a {
		padding-left:40px;
	}
	
	nav ul ul ul a {
		padding-left:80px;
	}
	
	
	.show {
		display:block;
		color:white;
		font-size:18px;
		line-height:70px;
		cursor:pointer;	
	}
	.show:hover {
		color: yellow;
	    border-radius: 15px;
	    box-shadow: 0px 0px 5px #DAA520,
	                0px 0px 5px #FFD700;
		margin-bottom:1px;
		
	}
	
	.icon {
		display:block;
		color:white;
		position:relative;
		line-height:35px;
		width:25px;
		font-size:25px;
		cursor:pointer;	
	}
	
	
	
	
	nav ul li a:hover {
		color: white;
		
	}
	
	.show + a , ul {
		display:none;
	}
	[ id^=button]:checked + ul {
		display:block;
	}
		
}