body {
	font-family: Arial, Sans-serif;
	font-size: 12pt;
	line-height: 1.4;
	margin: 0 auto;
}

h1,h2,h3,h4,h5,h6 {
	font-weight: normal;
	margin-top: 2em;
	color: #077bca;
}

section:not(:first-child) {
	border-top: 1px dashed #077bca;
}

code {
	color: #077bca;
}

aside {
	color: #077bca;
}

@media screen and (max-width: 800px){
	body {
		width: 90%;
	}
}

@media screen and (min-width: 800px){
	body {
		width: 800px;
	}
}

@media screen and (min-width: 640px){
	body {
		background-color: #eaf6ff;
	}

	h1 {
		font-size: 2.5rem;
	}
}

@media screen and (max-width: 500px){
	h1 {
		font-size: 1.5rem;
	}
}

ul {
	padding-left: 0;
	list-style-type: none;
}

#fixed-size-grid-items li {
	display: inline-block;
	vertical-align: top;
}

aside {
	font-size: 0.8rem;
}


#fixed-size-grid-items aside {
	display: inline: block;
	width: 170px;
	margin: 10px;
	font-size: 0.8rem;
}

#stretchable-grid-items li {
	display: inline-block;
	vertical-align: top;
	width: 100%;
}

#stretchable-grid-items aside {
	margin: 10%;
}

#stretchable-grid-items ul {
	margin-left: -10px;
	margin-right: -10px;
	margin-top: 1rem;
	margin-bottom: 1rem;
}

@media screen and (min-width: 480px){
	#stretchable-grid-items li {
	width: 50%;
}
}

@media screen and (min-width: 640px){
	#stretchable-grid-items li {
	width: 25%;
}
}