html {
	box-sizing: border-box;
}
*, ::before, ::after {
	box-sizing: inherit;
}
 
body{
	margin: 10px auto;
	min-width: 16em;
	max-width: 65em;
	font-family: sans-serif;
	color: #222;
}
 
header, nav, nav a, main, article, aside, footer {
	border-radius: 0.5em;
	padding: 10px;
	margin: 10px;
}

header, nav, main, footer {
	border-style: solid;
    border-width: thin;
}

header {
	text-align: center;
}

headername {
	font-size: 1.2em;
}

headersubtitle {
	font-size: 0.75em;
}

nav {
	margin-top: 0;
	font-size: 0.91em;
	padding: 0;
}
nav ul {
	padding: 0;
}

nav li {
	list-style: none;
	margin: 0;
	padding: 0.5em;
}
 
nav a {
	color: #000000;
	display: block;
	margin: 0;
	padding: 0.2em 10px;
	font-weight: bold;
	text-decoration: none;
	color: #000;
}
 
nav ul a:hover,
nav ul a:active  {
	color: #FFF;
}
 
main {
	display: block;
	min-width: 16em;
}
 
article {
	min-height: 400px;
}

footer {
	font-size: 0.75em;
	min-height: 50px;
}

changes {
	float: right;
}

/* background colors */
body {
	background-color: #d0f5fe; /* inofficial LDfM background color */
}

header, footer {
	background-color: #87ceeb;
}

main, nav, aside {
	background-color: #c0c0c0;
}

nav a {
	background-color: #ff8c00;
}
/* end background colors */

table#cvt, table#conft {
	border-spacing: 5px 0px;
}


table#cvt td:nth-child(even) {
	vertical-align: top;
	color: #222;
	font-size: 1em;
}

table#conft td:nth-child(even) {
	vertical-align: top;
	color: #222;
	font-size: 1em;
}

table#cvt td:nth-child(odd) {
	vertical-align: top;
	color:#444;
	width: 80px;
	text-align: right;
	font-size: 0.8em;
}

table#conft td:nth-child(odd) {
	vertical-align: top;
	color:#444;
	width: 80px;
	text-align: right;
	font-size: 0.8em;
}

dt {
	color: #444;
}
 
@media (min-width: 32em)  {	/* two-column layout */ 
	nav {
		float: left;
		width: 15em;
	}
	main {
		min-width: 20em;  
		margin-left: 15em;
	}
	aside {
		float: right;
		width: 12em;
	}
	footer {
		min-height: 0px;
	}
}
 
@media (min-width: 50em)  {	/* three-column layout */ 
  article {
    margin-right: 2em;
  }
}