body {
    background-image: linear-gradient(to right, green, yellow, blue, red);
}
.header {
	background-color: #000;
	font-size: 40px;
	font-family: verdana;
	height: 60px;
}
a {
	color: inherit;
	text-decoration: none;
}
.header-title {
	color: #fff;
	display: inline;
	vertical-align: middle;
	font-weight: bold;
}
.header-menu {
	float: right;
}
.header-button {
	background-color: #006195;
	font-size: 16px;
	color: #fff;
	padding: 10px;
	font-weight: bold;
	border: none;
	display: inline-block;
	
}