div.custom-div {
	font-family:Candara;
	font-size: large;
	font-weight: normal;
	height:100%;
	width: 1024px;
	margin: auto;
}
	
/*titletext*/
h1 {
	text-align:center;
	font-style: italic;
	font-weight: bold;
	font-size: xx-large;
	color: #800000;
	font-family: Candara;
}
h1 span {
display: block;
}

/*	margin:0; padding-top:15px;
	margin:0; padding:0; */

/*subtitle*/
h2, h1 span {
	text-align:center;
	font-size: large;
	color: #808000;
	font-family: Candara;
	font-weight: normal;
	margin:0; padding-top:10px;
}

/*intro*/
h3 {
	font-size: x-large;
	color: #333333;
	text-align: center;
	font-family: Candara;
	font-weight: normal;
  }

/*paragraph*/
h4 {
	font-family: Candara;
	font-size: large;
	font-weight: normal;
  }

/*paraheading*/
h5 {
	font-size: x-large;
	color: #0068FF;
	font-family: Candara;
	font-weight: normal;
}

/*subheading*/
h6 {
	color: #800000;
	font-family: Candara;
	font-weight: normal;
	font-size: large;

}
header{
	width: 850px;
	height: 120px;
	background: linear-gradient(214deg, rgba(55,52,45,1) 0%, rgba(164,157,157,1) 29%, rgba(159,147,137,1) 66%, rgba(212,208,197,1) 100%);
	text-align: left;
	margin: auto;
	border-radius: 10px;
}
.titleheader{
	text-align:left;
	color: #2b2a27;
	padding-top: 15px;
	margin-top:0px;
	margin-bottom:22px;
	padding-left: 170px;
	font-size: 42px;
	line-height: 1;
	font-weight: bold;
	font-family: Candara;
	font-style: italic;
	user-select: none;
}
.logo {
	padding-top:5px;
	float: left;
	margin-top: 1px;
	margin-left: 15px;
}
nav{
	float: left;
	width: 600px;
	//width: 100%;
	text-align: center;
	user-select: none;
}
nav a{
	border-radius: 3px;
	font-family: Candara;
	background-color: #e0decc;
	color: #2b2a27;
	text-decoration: none;
	line-height: 0%;
	//margin-left:20px;
	//padding-top:0px;
	padding-bottom:2px;
	padding-left:10px;
	padding-right:10px;
	font-size: 25px;
	font-variant: small-caps;
	width: 25%;
	transition: font-size .5s,
	background-color .5s;
}
nav a:hover{
	background-color: #f5f3e4;
	font-size: 30px;
}
iframe{
	height:100%;
	width:100%;
	border:none;
	margin-bottom:-5px;
}
.mainheader {
        position: fixed;
        top: 5px;
        left: 0px;
        right: 0px;
	bottom: 5px;
        height: 200px;
	text-align: center;
        overflow: hidden;
}
.content {
	position: absolute;
	top: 150px; /* 88px (header) + 2px top padding */
	left: 0px; /* 10px padding */
	right: 0px; /* 10px padding */
	bottom: 0px; /* 10px padding */
	border: 0px;
	overflow: hidden;
	background-repeat: repeat-x;
	background-image:url('blue.png');
	background-color: #d5e6ee;
}

<div style="text-align:center; font-family:Candara; height:100%; width: 1024px; margin: auto;">