html {
	background: gray;
}
body {
    background: rgb(10, 127, 204);
    display: flex;
    flex-flow: row wrap;
    max-width: 1280px;
    margin: 0 auto;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
#nav_button {
	display: none;
}
header {
	background: rgb(0, 153, 255);
	position: relative;
	z-index: 10;
  	width: 100%;
}
h1 {
	color: white;
	font-size: 48px;
	text-transform: uppercase;
	text-align: center;
	font-family: Verdana;
	margin: 0;
	padding: 25px;
}
nav {
	width: 25%;
}
nav a {
	display: block;
	color: white;
	font-size: 25px;
	text-decoration: none;
	padding: 5px 10px;
}
nav a.active, nav a:hover {
	color: black;
	font-weight: bold;
	background: white;
}

main {
	background: white;
	min-height: 400px;
	width: 75%;
	box-sizing: border-box;
	padding: 10px 20px;
}
main img {
    display: block;
    border: 1px solid black;
    width: 50%;
    float: right;
    margin: 0 0 20px 20px;
}
footer {
	background: rgb(0, 153, 255);
	color: white;
	text-align: center;
  	width: 100%;
  	padding: 10px;
}
footer p {
	margin: 0;
	padding: 5px;
}

@media screen and (max-width:1023px) {
	h1 {
		font-size: 42px;
	}
	nav {
		width: 100%;
		text-align: center;
	}
	nav a {
		display: inline-block; 
		margin: 0 5px;
	}
	main {
		width: 100%;
	}
}

@media screen and (max-width:567px) {
	#nav_button {
		display: block;
		position: absolute;
		bottom: -12px;
		right: 20px;
		box-sizing: border-box;
		padding: 5px 10px;
		border: 1px solid black;
		background: white;
		color: blue;
		font-weight: bold;
		text-align: center;
	}
	#nav_button:hover {
		cursor: pointer;
	}
	nav {
		transition: margin-top 0.5s;
		position: relative;
		margin-top: -190px;
	}
	nav.open {
		margin-top: 0;
	}
	nav a {
		display: block;
		margin: 2px;
	}
	h1 {
		font-size: 28px;
	}
	main img, .right img, .bild img, .sida4 img {
		width: 100%;
	}
	.sida2, .rad1, .rad2 {
		flex-direction: column;
	}
}

.sida2 {
	display: flex;
}

.left {
	flex: 2;
}

.left h2 {
	text-align: center;
}

.right {
	flex: 1;
	display: flex;
	justify-content: center;
	align-items: center;
}

.right img {
	width: 80%;
}

.sida4 {
	display: flex;
	flex-direction: column;
}

.rad1, .rad2 {
	display: flex;
}

.left2 {
	flex: 3;
}

.right2 {
	flex: 2;
}

.sida4 img {
	width: 90%;
}