.welcome_content, 
/*h1,*/ 
.table_links, 
footer,
#about_h2,
#about_list,
#header, 
article,
#back_home {
	margin-left: 100px;
	margin-right: 100px;
}
p {
	line-height: 1.3;
	font-family: Arial, Verdana, sans-serif;
	max-width: 65ch;
}
blockquote {
	max-width: 60ch;
}
h1, h2, h3, h4, li, blockquote, #main_nav {
	font-family: Arial, Verdana, sans-serif;
}
h1 {
	font-size: 4.219rem;
}
h2 {
	font-size: 2.813rem;
}
h3 {
	font-size: 1.875rem;
}
h4, p, blockquote, li, #main_nav {
	font-size: 1.25rem;
}
.internal_link {
	font-size: 0.75rem;
}

/*bespoke for certain tables*/
.table_categories {
	color: red;
}
#table_demo {
	color: gray;
}

#table_demo td {
	text-align: center;
}

/*about.php*/
#about_list {
	list-style-type: none;	
	padding: 0;
	width: 200px;
}

#about_li {
	display: block;
	padding: 8px 16px;
	text-decoration: none;
}