.contents_box{
    display: flex;
    flex-wrap: wrap;
    margin: 30px auto;
    width: 760px;
}
.contents_box .img{
    width: 45%;
    margin: 20px 0;
}
.contents_box img{
    width: 360px;
    height: auto;
    margin: auto;
}
.contents_box .text{
    width: 45%;
    margin: 20px auto;
}
.contents_box .text p{
    padding: 10px;
}
.contents_box .text h2{
    font-size: 32px;
    color: #f03;
    padding: 10px;
}
footer{
    text-align: center;
    margin: 40px auto;
}
footer p{
    font-size: 24px;
    padding: 20px;
}

nav {
    background-color: #C69;
    text-align: center;
    width: 30%;
    max-width: 260px;
    padding: 50px 10px;
    height: 100vh;
    position: fixed;
}
nav > p{
    font-size: 26px;
}
nav ul{
    text-align: left;
    margin: auto;
    padding-left: 2em;
}
nav li{
    padding: 10px 0;
}
nav li.inner{
    padding: 10px 1em;
    
}
nav div{
    margin: 40px auto;
}

#main {
    margin: auto;
    display: flex;
    flex-wrap: wrap;
    background-color: #ffc;
}
#main section{
    margin-left: 270px;
}
#main article{
    padding: 50px 50px 400px;
}
#main article h1 {
    font-size: 40px;
    padding-bottom: 50px;
}

#kids{
    margin: auto;
    display: flex;
    flex-wrap: wrap;
    background-image: url(../img/bk_xmas.gif);
}
#kids section{
    margin-left: 270px;
}
#kids article{
    padding: 0 50px 400px;
}
#kids article h1 {
    font-size: 40px;
    padding: 80px 0 50px;
}
#kids section ul {
    display: flex;
    flex-wrap: wrap;
}
#kids section li:nth-child(4n){
    width: 35%;
    padding-bottom: 20px;
}
#kids section li:nth-child(4n+1){
    width:15%;
}
#kids section li:nth-child(4n+2){
    width:30%;
}
#kids section li:nth-child(4n+3){
    width:15%;
}

#car{
    width: 800px;
    margin: auto;;
}
#car header h1{
    font-size: 32px;
}
#car header h1 span{
    font-size: 48px;
    color: #f03;
    display: block;
    padding: 20px 0;
    text-align: center;
}
#car header p{
    font-size: 24px;
    text-align: right;
}

#car .contents_box .img{
    width: 45%;
    margin: 20px 0;
}
#pc{
    background-color: #cff;
}
#pc header{
    width: 800px;
    margin: 20px auto;
    font-size: 24px;
}
#pc header h1{
    font-size: 48px;
}
#pc .contents_box .text{
    background-color: #fff;
}
#pc .contents_box + p{
    background-color: #fff;
    margin: auto;
    text-align: center;
    width: 30%;
}

#pay{
    background-color: #36c;
}
#pay section div{
    background-color:#fff;
    width: 800px;
    margin: 15px auto;
    padding: 15px;
}
#pay h2 {
    padding: 15px 20px;
}
#pay ol {
    list-style: decimal;
    padding: 20px 60px;
}
#pay ul {
    display: flex;
    flex-wrap: wrap;
    padding: 10px 60px;
}
#pay ul li {
    width: 15%;
    text-align: right;
}
#pay ul li:nth-child(3n){
    width: 65%;
    text-align: left;
    padding-left: 30px;
}
#pay p {
    padding: 10px 60px;
}
#pay h2 +p {
    padding: 0 60px 10px;
}
#pay ol li {
    padding: 10px;
}