body {
  margin: 0;
  font-family: 'Noto Sans JP', sans-serif;
  color: #333333;
}

.header a{
    text-decoration: none;
}

@media screen and (min-width: 769px){
.header {
  background-color: #2C2F33;
  height: 75px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: center;
}

.header-text h1 {
  font-size: 45px;
  color: #ffffff;
  padding: 15px 0px 15px 15px;
}
}

@media screen and (max-width: 768px){
.header {
  background-color: #2C2F33;
  height: 60px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: center;
}

.header-text h1 {
  font-size: 34px;
  color: #ffffff;
  padding: 13px 0px 13px 10px;
}
}

.header-btn {
  margin-right: 15px;
}

#nav-drawer {
  position: relative;
}

.nav-unshown {
  display:none;
}

@media screen and (max-width: 768px){
#nav-open {
  display: inline-block;
  width: 30px;
  vertical-align: middle;
  margin: 0px 10px 0px 0px;
}
}

@media screen and (min-width: 769px){
#nav-open {
  display: inline-block;
  width: 30px;
  height: 22px;
  vertical-align: middle;
  margin: 0px 24px 15px 0px;
}
}

@media screen and (max-width: 768px){
#nav-open span, #nav-open span:before, #nav-open span:after {
  position: absolute;
}

.nav i {
  font-size: 32px;
  display: table-cell;
  vertical-align: middle;
  color: #fff;
}
}

@media screen and (min-width: 769px){
#nav-open span, #nav-open span:before, #nav-open span:after {
  position: absolute;
}

.nav i {
  font-size: 40px;
  display: table-cell;
  vertical-align: middle;
  color: #fff;
}
}

#nav-open span:before {
  bottom: -8px;
}
#nav-open span:after {
  bottom: -16px;
}


#nav-close {
  display: none;
  position: fixed;
  z-index: 99;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: black;
  opacity: 0;
  transition: .3s ease-in-out;
}

#nav-content {
  overflow: auto;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  width: 90%;
  max-width: 330px;
  height: 100%;
  background: #fff;
  transition: .3s ease-in-out;
  -webkit-transform: translateX(-105%);
  transform: translateX(-105%);
}

#nav-input:checked ~ #nav-close {
  display: block;
  opacity: .5;
}

#nav-input:checked ~ #nav-content {
  -webkit-transform: translateX(0%);
  transform: translateX(0%);
  box-shadow: 6px 0 25px rgba(0,0,0,.15);
}


@media screen and (max-width: 1549px){
  .header-btn {
    display:none;
  }

  .sidemenuparent {
    display:none;
  }
}

@media screen and (min-width: 1550px){
  #nav-open {
    display:none;
  }

  .mainparent{
    display: flex;
    justify-content: center;
    width: 75%;
    margin: auto;
  }

  .mainpageparent{
    border:solid 6px #fafafa;
    width: 77%;
    float: left;
    margin: 30px 20px;
  }

  .mainpage {
    border:solid 2px #ededed;
  }

  .sidemenuparent{
    border:solid 6px #fafafa;
    width: 20%;
    height: 992px;
    float: right;
    margin: 30px 20px;
  }

}

.sidemenu{
  border:solid 2px #ededed;
}

.menu-title {
  font-size: 24px;
  color: #333;
background: #eaf3ff;
border-bottom: solid 3px #516ab6;
}

.menu-title h3{
  padding: 14px;
}

.sidemenu {
  color: #595959;
}

.UserGuidecont hr{
  border:solid 0.5px #a1a1a1;
}

.UserGuidecont a{
  text-decoration: none;
  color: #595959;
}

.UserGuide p{
  margin: 12px 16px;
  font-size: 21px;
}

.sidemenu hr{
  margin: 5px 8px;
}

.UserGuidecont p{
  margin: 10px 22px;
  font-size: 19px;
}

.btn {
  text-align: center;
  margin: 5px;
  font-size: 25px;
}

.btn-square {
  display: inline-block;
  padding: 0.5em 1em;
  text-decoration: none;
  background: #668ad8;
  color: #FFF;
  border-bottom: solid 4px #627295;
  border-radius: 3px;
}
.btn-square:active {
  -webkit-transform: translateY(4px);
  transform: translateY(4px);
  border-bottom: none;
}

.title h1 {
  font-size: 30px;
  margin: 20px;
}

.text-margin {
  background-color: #fafafa;
  margin: 20px;
}
.text {
  margin: 20px;
}

.text h1 {
  font-size: 25px;
}

.text h2 {
  font-size: 20px;
}

.geek {
  color: #696969;
}

.footer {
  background-color: #424242;
  height: 140px;
  display: inline-block;
  width: 100%;
}

.footer h1 {
  font-size: 30px;
  padding: 30px 10px 30px 30px;
  color: #ffffff;
  width: 250px;
}

.footer a{
  text-decoration: none;
}

.footer-1 {
  display: flex;
  justify-content:center;
}

.footer-child p {
  color: #aaa;
  font-size: 16px;
  margin: 0px 20px;
  width: 250px;
}

.footer-child a {
  color: #aaa;
  text-decoration: none;
  font-size: 16px;
  margin: 0px 20px;
  width: 70px;
}