header{
	background:green;
	background:url("https://jasa.nl/wp-content/uploads/2019/05/Onze-5-favoriete-plastic-upcycle-artikelen-2.png");
	background-size:400px;
	width:100%;
	height:100%;

}
.center{
	text-align:center;
}
.norm{
	font-family:serif;
	font-weight:normal;
}
header nav{
	margin-top:5%;
}
header h1{
	text-align:center;
}
header{
	float:left;

}
.mid h1, .mid h3, .mid p{
	margin-left:5%;
	color:black;
}
.mid{
	line-height:150%;
	font-size:1.2em;
}
header nav{
	margin:1%;
}

nav a:hover{
	opacity:1;
}
.active{
	opacity:1;
	background:white;
}

nav a{
	background:white;
	opacity:0.5;
}
.left{
	float:left;
	display:inline-block;
	background:lightgreen;
	width:25%;
	height:100%;
}
.left img{
	display:block;
	width:70%;
	border:solid 2px green;
	margin:0 auto;
	margin-bottom:2%;
	margin-top:2%;

}
.right{
	display:inline-block;
	width:70%;
}