body{
		margin: 0;
}

.clr{
	clear: both;
}

#header{
	width: 100%;
	min-height: 300px;
	background-color: #5fa1ff;
}

.header_menu{
	width: calc(75% - 5px);
	height: 75px;
	border: 1px solid #ffffff;
	margin-right: 0;
	float: right;
}

.header_logo{
	width: calc(25% - 5px);
	height: 150px;
	border: 1px solid #ffffff;
	margin-left: 0;
	float: left;
}

#content{
	width: 90%;
	min-height: 300px;
	border: 1px solid #b4b4b4;
	margin: 0 auto;
	margin-top: 50px;
}