html, .textarea {
font-family:"游ゴシック Medium",YuGothic,YuGothicM,"Hiragino Kaku Gothic ProN","Hiragino Kaku Gothic Pro",メイリオ,Meiryo,sans-serif;

}

.header{
    color:#fff;
    background: #f44434;
    box-shadow:0 1px 6px rgba(30,30,80,.3);
    left:0;
    line-height:1;
    position:fixed;
    top:0;
    width:100%;
    height:52px;
    z-index:24;
  }
 .header h1{
    font-size: 26px;
    margin-top:13px;
    margin-left:10px;
}

#nav {
    list-style: none;
    margin-bottom:20px;
  }
   
  #nav li {
    width: 160px;
    text-align: center;
    font-size:18px;
    background: #f44434;
    float: right;
    height: 50px;
    line-height: 50px;
    margin-top:-54px;
  }
   
  #nav li a {
    text-decoration: none;
    color: #fff;
    padding: 20px;
  }

.content{
    padding-top:40px;
    height: 100%;
    margin:20px;
}
a {
  text-decoration: none;
  color:#fff;
  }
a:hover{
  color:#fff;
}

.cssgrid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    grid-auto-rows: 1fr;
    grid-gap: 0.8em;
    padding: 0.8em;
    margin: 0 0 2em;
  }
  
  .cssgrid > div {
    overflow: auto;
    min-width: 0;
    padding: 1em;
  }

.textarea{
  width:100%;
  height:100%;
  font-size:14px;
}

.qr-content{
    text-align:center;
}
 
.button {
  background-color: #f44434;
  border: 2px solid #f44434;
  color: #fff;
  line-height: 40px;
  width:100%;
  margin:10px auto;
  font-size:16px;
}
.button:hover {
  background-color: #fff;
  border-color: #f44434;
  color: #f44434;
}

.cssgrid h3{
  color:#fff;
  background:#f44434;
  text-align:center;
  font-weight:300;
}
.cssgrid h4{
  font-weight:400;
}
.label{
  text-align:center;
}

.catchphrase{
  margin-top:60px;
}
.pr1{
  text-align:center;
  margin-top:80px;
  margin-left:10px;
  margin-right:10px;
  font-size: 3vmin;
}

.pr2{
  margin-top:80px;
  margin-left:10px;
  margin-right:10px;
  font-size: 3vmin;
}
.pr2 ul, li{
  font-size: 3vmin;
  list-style:none;

}

.howto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  grid-auto-rows: 1fr;
  grid-gap: 0.3em;
  padding: 0.8em;
  margin: 0 0 1em;
  font-size:15px;
  text-align: center;
}
.howto p{
  text-align:left;
}

.howto > div {
  border:2px solid #f1f1f1;
  overflow: auto;
  min-width: 0;
  padding: 1em;
}

.pr3{
  margin-top:80px;
  margin-left:10px;
  margin-right:10px;
  font-size: 3vmin;
}

.attention{
  margin-top:80px;
  margin-left:20px;
  margin-right:20px;
  font-size: 3vmin;
}