#wrapper {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
}

#header {
  height: 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

#header p {
  font-size: 14px;
}

#header p span {
  color: #4682b4;
  font-weight: bold;
}

#header .bg-change {
  display: flex;
}

#header .bg-change button {
  width: 20px;
  height: 20px;
  border: solid 1px #a9a9a9;
  cursor: pointer;
}

#header .bg-change .beige {
  background-color: beige;
}

#header .bg-change .lavender {
  background-color: #e6e6fa;
}

#header .bg-change .mistyrose {
  background-color: #ffe4e1;
}

#header .bg-change .lightcyan {
  background-color: #e0ffff;
}

#header .bg-change .azure {
  background-color: #f0fff0;
}

#main-contents {
  width: calc(100% - 250px);
  padding: 20px;
  height: 900px;
}

.bg-change1 {
  background-color: beige;
}

.bg-change2 {
  background-color: #e6e6fa;
}

.bg-change3 {
  background-color: #ffe4e1;
}

.bg-change4 {
  background-color: #e0ffff;
}

.bg-change5 {
  background-color: #f0fff0;
}

.yen {
  color: #FD0505;
  font-weight: bold;
  font-size: 18px;
}

.caution {
  font-size: 12px;
}

.none {
  display: none;
}

.block {
  display: block;
}

#side-menu {
  width: 250px;
  padding: 20px;
}

#side-menu .menu1 {
  margin-bottom: 20px;
}

#side-menu .menu1 p {
  margin-bottom: 10px;
  font-weight: bold;
}

#side-menu .menu1 form label {
  display: block;
  line-height: 1.7;
}

#side-menu .menu2 {
  margin-bottom: 20px;
}

#side-menu .menu2 p {
  margin-bottom: 10px;
  font-weight: bold;
}

#side-menu .menu2 #quantity {
  padding: 5px 5px 2px;
  width: 50px;
  text-align: right;
  border-radius: 3px;
  border: solid 1px #c0c0c0;
}

#side-menu button {
  background-color: #FAAF3F;
  padding: 8px 10px 5px;
  border-radius: 3px;
  color: #fff;
  margin-bottom: 40px;
}

#side-menu button:hover {
  background-color: #ffa07a;
}

#side-menu #cart .totalPrice {
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: solid 1px;
  padding: 10px;
}

#side-menu #cart .totalPrice p {
  font-weight: bold;
}

#side-menu #cart .title {
  font-weight: bold;
}

#contets1 .photo {
  display: flex;
  justify-content: center;
}

#contets1 .photo .bigphoto {
  max-width: 440px;
  max-height: 300px;
  padding: 15px;
  background: #fff;
  border: solid 1px #dcdcdc;
}

#contets1 .photo .images {
  margin-right: 15px;
}

#contets1 .photo .images li {
  margin-bottom: 15px;
  cursor: pointer;
}

#contets1 .photo .images li:last-child {
  margin-bottom: 0;
}

#contets1 .photo .images li img {
  max-width: 120px;
  max-height: 64px;
  border: solid 1px #dcdcdc;
}

#contets1 .price {
  display: flex;
  margin: 30px 0 20px;
  align-items: center;
}

#contets1 .price .timeSale {
  background-color: #FD0505;
  padding: 5px;
  color: #fff;
  font-weight: bold;
  font-size: 14px;
  margin-right: 10px;
}

#contets1 #CDT {
  font-size: 20px;
}

#contets1 .merchandise {
  margin-top: 20px;
  background: #fff;
  border-radius: 5px;
  padding: 20px;
}

#contets1 .merchandise .title {
  font-weight: bold;
  font-size: 16px;
  margin-bottom: 20px;
}

#contets1 section {
  margin-top: 30px;
}

#contets1 .accordion {
  margin: 0 auto;
}

#contets1 .accordion #items {
  display: flex;
}

#contets1 .accordion #items li {
  cursor: pointer;
  border: solid 2px #dcdcdc;
  margin: 5px;
}

#contets1 .accordion #items li img {
  max-width: 100px;
}

#contets1 .menu {
  background-color: #dc143c;
  color: #fff;
  font-size: 18px;
  padding: 10px;
  text-align: center;
  cursor: pointer;
  user-select: none;
  border: solid 1px;
  position: relative;
}

#contets1 .menu:hover {
  opacity: .7;
}

#contets1 .menu:active {
  opacity: .7;
}

#contets1 .menu:is-active {
  opacity: .7;
}

#contets1 .menu #handle {
  font-size: 30px;
  position: absolute;
  right: 9px;
  top: 3px;
}

#contets1 .menu #minus {
  font-size: 25px;
  position: absolute;
  right: 10px;
  top: 7px;
}

#contets1 .contents {
  text-align: center;
  line-height: 0;
  height: 0;
  overflow: hidden;
  opacity: 0;
  transition-duration: 0.4s;
}

#contets1 .contents.is-open {
  padding: 10px;
  line-height: normal;
  height: auto;
  opacity: 1;
  background: #fff;
}