@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP&display=swap');

html {
	font-size: 62.5%;
}
body {
	margin: 0;
	font-size: 1.5rem;
}

p {
	margin: 0 0 1em;
}
li {
	list-style: none;
}
*, *::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 {
	margin: 0 0 1em;
	background: #fff;
	overflow: hidden;
}

.div-child {
	width: 200px;
	height: 100px;
}
.li-child {
	width: 200px;
	height: 100px;
	background: #ff9933;
}
.div-child:nth-child(1) {
	background: #ff9933;
}
.div-child:nth-child(2) {
	background: #3399ff;
}
.style01 {
	margin-bottom: 10px;
}
.style02 {
	margin-top: 30px;
}
.style03 {
	margin-top: 30px;
}
.style04 {
	margin-top: 10px;
}
.style05 {
	margin-bottom: 30px;
}
.style06 {
	margin-bottom: 10px;
}
.style07 {
	display: flex;
	margin-top: 30px;
}
.style08 {
	margin-top: 10px;
}
.style09 {
	border: 1px solid #333;
	margin-top: 30px;
}
.style10 {
	margin-top: 10px;
}
.style11 {
	padding-top: 10px;
	margin-top: 30px;
}
.style12 {
	margin-top: 10px;
}
.style13 {
	overflow: visible;
}
.style14 {
	margin-top: 30px;
}

.copyright {
	text-align: center;
	padding-top: 1em;
	font-size: 14px;
}