body {
	max-width: 800px;
	width: 90%;
	margin: auto;
}

@media screen and (min-width: 640px) {

	body {
		background-color: #eaf6ff;
	}

}

@media screen and (max-width: 500px) {

	h1 {
		font-size: 1.5rem;
	}

}

@media screen and (min-width: 640px) {

	h1 {
		font-size: 2.5rem;
	}

}

section#fixed-size-grid-items li {
	display: inline-block;
	margin: 10px;
	font-size: 0.8rem;


}

section#fixed-size-grid-items aside {
	width: 170px;
	margin: 10%
	font-size: 0.8rem;

}

section#fixed-size-grid-items ul {
	padding-left:0;
	}

section#stretchable-grid-items li {
	display: inline-block;
	font-size: 0.8rem;
} 


section#stretchable-grid-items ul{
	margin-left: -10px;
	margin-right: -10px;
	top: 1rem;
	bottom: 1rem;
	padding-left: 0;
}

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

}

@media screen and (min-width: 480px) {

	section#stretchable-grid-items li {
		width: 50%;

	}

}

@media screen and (max-width:500px) {

	h1 {
		font-size:1.5rem;
	}
}



@media screen and (min-width: 640px) {

	section#stretchable-grid-items li {
		width:25%;
	}
}