body {
	width: 960px;
	margin: 2em auto;
	font-family: Arial, sans-serif;
	font-size: 16px;
	line-height: 1.4;
}

h1 {
	font-size: 2em;
	font-weight: normal;
	margin: 0 0 1rem 0;
}
section {
	padding: xs2rem;
	border: 1px solid #ccc;
	margin: 4rem 0;
	background-color: #fff;
}

aside {
	font-size: 24px;
	font-family: Georgia, Serif;
	font-style: italic;
	background-color: #aaa;
	color: #fff;
	padding: 1.5rem;
	width: 15rem;
}

p {
	display: block;
}

.section1 aside {
    float: right;
}

.section2 {
    position: relative;
}
.section2 aside {
    position: absolute;
    bottom: 0;
    right: 0;
}

.section3 aside {
    background-color: green;
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1;
}

.section4 {
    position: relative;
}
#one {
    background-color: red;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -144px;
    margin-top: -106.5px;
    z-index: 1;
}

#two {
    background-color: black;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -96.5px;
    margin-left: -134px;
}