/* Structural styles */
html { 	
	/*
		Fit the background image to the full page for each browser. 
		Also makes the image static, which means the image won't 
		repeat when you scroll down.
		
		Source: https://css-tricks.com/perfect-full-page-background-image
	*/
	background: url(https://i.stack.imgur.com/1Tzky.png) no-repeat center center fixed; 
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover;
}

#page-wrapper{
	width: 80%;
	margin: auto; 
}

#main-content{
	width: 50%;	
	border-right: 1px solid grey;
}

#side-content{
	width: 50%;
}

#main-content, #side-content{
	float: left;
	padding: 0 1.5%;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
	border-top: 1px solid grey;
}

article{
	background-color:rgba(0,0,0,0.1);
	padding: 4%;
	margin: 3%;
}

footer{
	background-color:rgba(0,0,0,0.1);
	font-style: italic;
	font-family: arial, geneva, sans-serif;

}

/*figure*/
#photo{
	width: 20%;
	margin: 2% auto 4% auto;
	padding: 1.5%;
	border-top: 2px solid grey;
	border-bottom: 4px double grey;
}

#video{
	width: 70%;
	margin: auto; 
}

figure>img{
	width: 100%;
}

.clear{
	clear: both;
}

/* Typography */
header>h1{
	text-align: center;
	color: #120A8F;
	font-family: arial, geneva, sans-serif;

}

h2{
	text-align: center;
	color: #0047AB;
	font-family: arial, geneva, sans-serif;
}

h3{
	color: #1560BD;
	font-family: arial, geneva, sans-serif;
}

p{
	line-height: 200%;
	font-size: 25px;
	font-family: arial, geneva, sans-serif;
}

small{
	font-family: arial, geneva, sans-serif;
}

article>ul>li{
	line-height: 200%;
	font-size: 25px;
	font-family: arial, geneva, sans-serif;
}
/* Navigation styles */
nav{
	background-color:rgba(0,0,0,0.1);
	width: 80%;
	margin: auto;
}

nav>ul{
	display: flex;
	justify-content: center;
	flex-direction: row; 
}

nav>ul>li{
	list-style-type: none;
	padding: 1%;
	font-family: arial, geneva, sans-serif;

	
}

nav>ul>li>a{
	text-decoration: none;
}

nav>ul>li>a:link{
	color: blue;
	
}
nav>ul>li>a:visited{
	color: purple;
}
nav>ul>li>a:hover{
	color: yellow;
	
}
nav>ul>li>a:active{
	color: orange;
}