html {
	font-size: 62.5%;
}
body {
	margin: 0;
	font-size: 1.5rem;
}
p {
	margin: 0 0 1em;
}
*, *::before, *::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}
.contents {
	max-width: 630px;
	margin: 0 auto;
	padding: 20px;
	background: #f2f2f2;
}
.title {
	margin: 0 0 1em;
	font-weight: bold;
}

.div-parent {
	position: relative;
	min-height: 100px;
	margin: 0 0 1em;
	background-color: #fff;
}
.div-child-01 {
	position: absolute;
	top: 0;
	right: 0;
	width: 80px;
	height: 40px;
	background-color: orange;
}
.div-child-02 {
	position: absolute;
	top: 0;
	right: 0;
	width: 80px;
	height: 40px;
	background-color: blue;
	transform: rotate(90deg);
}
.div-child-03 {
	position: absolute;
	top: 0;
	right: 0;
	width: 80px;
	height: 40px;
	background-color: green;
	transform: rotate(90deg);
	transform-origin: top left;
}
.div-child-04 {
	position: absolute;
	top: 0;
	right: 0;
	width: 80px;
	height: 40px;
	background-color: red;
	transform: rotate(90deg);
	transform-origin: 60px 20px;
}
.div-child-05 {
	position: absolute;
	top: 0;
	right: 0;
	width: 80px;
	height: 40px;
	background-color: brown;
	transform: translateY(40px) rotate(90deg);
	transform-origin: 60px 20px;
}
.div-child-06 {
	position: absolute;
	top: 0;
	left: 100%;
	width: 80px;
	height: 40px;
	background-color: purple;
	transform: rotate(90deg);
	transform-origin: top left;
}

.copyright {
	text-align: center;
	padding-top: 2em;
	font-size: 14px;
}