*{
	box-sizing: border-box;
}
h1 {
	text-align: center;
	font-family: "Arial", Arial, serif;
	background-color: #99CCFF;
}

h2{
	font-style: italic;
	border-bottom-style: solid;
	border-width: 1px
}

p{
	font-family: "Arial", Arial, serif;
	background-color: FFFFCC;
	border-radius: 10px;
	padding: 20px;
}

img.top{
	vertical-align: text-top;
}

img.bottom{
	display: block;
	margin-left: auto;
	margin-right: auto;
}

div {
	margin: 0px;
	border: 0px;
	padding: 1px;
}

.block{
	width: auto;
	float: left;
}


.block img.top{
	width: auto;
}

.block img.bottom{
	width: auto;
	float: right;
}

#nav{
	background-color:#778899;
}

#nav_wrapper{
	width: 0 auto;
	margin: 0 auto;
	text-align: left;
	
}

#nav ul{
	list-style-type: none;
	padding: 0;
	margin: 0;
	position: relative;
}

#nav ul li{
	display:inline-block;

}

#nav ul li:hover{
	background-color: #333;
}

#nav ul li a,visited{
	color:#ccc;
	display: block;
	padding: 15px;
	text-decoration: none;

}

#nav ul li a:hover{
	color: #ccc;
	text-decoration: none;
}

#nav ul li:hover ul{
	display: block;
}

#nav ul ul{
	display: none;
	position: absolute;
	background-color: #333;
	border: 5px solid #778899;
	border-top: 0;
	margin-left: -5px;
}

#nav ul ul li{
	display: block;
}

#nav ul ul li a,visited{
	color: #ccc;
}

#nav ul ul li a:hover{
	color: #099;
}

@media only screen and(min-width: 512px) {
	.block{
		width: 100%;
	}
}

@media only screen and (min-width: 768px) {
  .block {
    width: 50%;
  }
}