header{
	background-color: white;
}
header img{
	margin-left: 300px;
}
ul{
	margin: 0;
	list-style: none;
	color: black;
	height: 40px;
	padding-left: 450px;
	background-color: rgba(135,180,255,0.2);
	font-weight: bold;
	font-size: 17px;
	width: 1600px;
}
ul li{
	width: 150px;
	height: 30px;
	float: left;
	text-align: center;
	padding-top: 10px;
	border-right: 2px dashed rgba(135,180,255,0.6);
	transition: background-color 0.2s linear;
}
ul li:hover{
	background-color: rgba(135,180,255,0.4);
}
ul a:first-child li{
	border-left: 2px dashed rgba(135,180,255,0.6);
}
ul a:link {
	text-decoration: none;
	color: black;
}
ul a:visited {
	text-decoration: none;
	color: black;
}
ul a:active {
	text-decoration: none;
	color: black;
}