@media screen and (min-width:768px) {
    .h90{
      background-color: #dddddd;
    }
    .a1 {
        text-align: center;
        text-decoration: underline #67c5ff;
      }
      .a2{
        width: 400px;
        height: 250px;
        margin:0 auto;
        text-align: center;
      }
      .a3{
        text-align: center;  
      }
      .a4{
        text-align: center; 
        width: 400px;
        padding: 0.5em 1em;
        margin: 0 auto;
        color: #67c5ff;
        background: white;
        border-top: solid 5px #67c5ff;
        box-shadow: 0 3px 5px rgba(0, 0, 0, 0.22);
      }
      .a4 p {
        margin: 0; 
        padding: 0;
    } 
      .btn-flat-border {
        display: inline-block;
        padding: 0.3em 1em;
        text-decoration: none;
        color: #67c5ff;
        border: solid 2px #67c5ff;
        border-radius: 3px;
        transition: .4s;
      }
      
      .btn-flat-border:hover {
        background: #67c5ff;
        color: white;
      }
      .star{
        color: red;
      }
      a {
      color: black;
      text-decoration:none;
      }
      .btn-flat-border2 {
        display: inline-block;
        padding: 0.3em 1em;
        text-decoration: none;
        color: #67c5ff;
        border: solid 2px #67c5ff;
        border-radius: 3px;
        transition: .4s;
      }
      .btn-flat-border2:hover {
        background: #67c5ff;
        color: white;
      }
      .cp_actab {
        position: relative;
        overflow: hidden;
        width: 50%;
        margin-bottom: 1px;
          color: #ffffff;
          text-align: center;
      }
      .cp_actab input {
        position: absolute;
        z-index: -1;
          opacity: 0;
          text-align: center;
      }
      .cp_actab label {
        font-weight: bold;
        line-height: 3;
        position: relative;
        display: block;
        padding: 0 0 0 1em;
        margin: 0 0 1px 0;
        cursor: pointer;
          background: #1b2538;
      }
      .cp_actab .cp_actab-content {
        overflow: hidden;
        max-height: 0;
        -webkit-transition: max-height 0.35s;
        transition: max-height 0.35s;
          background: #a9bce2;
          text-align: center;
      }
      .cp_actab .cp_actab-content p {
          margin: 1em;
          text-align: center;
      }
      /* :checked */
      .cp_actab input:checked ~ .cp_actab-content {
          max-height: 20em;
          text-align: center;
      }
      /* Icon */
      .cp_actab label::after {
        line-height: 3;
        position: absolute;
        top: 0;
        right: 0;
        display: block;
        width: 50%;
        height: 3em;
        -webkit-transition: all 0.35s;
        transition: all 0.35s;
        text-align: center;
      }
      .cp_actab input[type=radio] + label::after {
        content: 'BC';
      }
      .cp_actab input[type=radio]:checked + label::after {
        transform: rotateX(180deg);
      }
      .g3 {
          position: relative;
          padding: 1.5rem 2.5rem;
          border: 4px solid #000;
        }
        
        .g3:before {
          position: absolute;
          top: 4px;
          left: 4px;
          width: calc(100% - 8px);
          height: calc(100% - 8px);
          content: '';
          border: 4px dotted #000;
        }
    }
@media screen and (max-width:768px) {
  .h90{
    background-color: #dddddd;
  }
    .a1 {
        text-align: center;
        text-decoration: underline #67c5ff;
      }
    .a2{
        width: 90%;
        height: 90%;
        margin:0 auto;
        text-align: center;
    }
    .a3{
        width: 90%;
        height: 90%;
        text-align: center;   
        margin:0 auto;
    }
    .a4{
        text-align: center; 
        width: 80%;
        height: 80%;
        padding: 0.5em 1em;
        margin: 0 auto;
        color: #67c5ff;
        background: white;
        border-top: solid 5px #67c5ff;
        box-shadow: 0 3px 5px rgba(0, 0, 0, 0.22);
    }
      .btn-flat-border {
        display: inline-block;
        padding: ;
        text-decoration: none;
        color: #67c5ff;
        border: solid 2px #67c5ff;
        border-radius: 3px;
        transition: .4s;
        width: 20%;
        height: 20%;
      }
      .btn-flat-border2 {
        display: inline-block;
        padding: ;
        text-decoration: none;
        color: #67c5ff;
        border: solid 2px #67c5ff;
        border-radius: 3px;
        transition: .4s;
        width: 40%;
        height: 40%;
      }
      
      .btn-flat-border:hover {
        background: #67c5ff;
        color: white;
      }
    .star{
        color: red;
    }
    a {
      margin: auto;
      width: 90%;
      height: 90%;
      color: black;
      text-decoration:none;
    }
    img.y1{
      width: 96px;
      height: 65px;
    }
    .cp_actab {
      position: relative;
      overflow: hidden;
      width: 50%;
      margin-bottom: 1px;
        color: #ffffff;
        text-align: center;
    }
    .cp_actab input {
      position: absolute;
      z-index: -1;
        opacity: 0;
        text-align: center;
    }
    .cp_actab label {
      font-weight: bold;
      line-height: 3;
      position: relative;
      display: block;
      padding: 0 0 0 1em;
      margin: 0 0 1px 0;
      cursor: pointer;
        background: #1b2538;
    }
    .cp_actab .cp_actab-content {
      overflow: hidden;
      max-height: 0;
      -webkit-transition: max-height 0.35s;
      transition: max-height 0.35s;
        background: #a9bce2;
        text-align: center;
    }
    .cp_actab .cp_actab-content p {
        margin: 1em;
        text-align: center;
    }
    /* :checked */
    .cp_actab input:checked ~ .cp_actab-content {
        max-height: 20em;
        text-align: center;
    }
    /* Icon */
    .cp_actab label::after {
      line-height: 3;
      position: absolute;
      top: 0;
      right: 0;
      display: block;
      width: 50%;
      height: 3em;
      -webkit-transition: all 0.35s;
      transition: all 0.35s;
      text-align: center;
    }
    .cp_actab input[type=radio] + label::after {
      content: 'BC';
    }
    .cp_actab input[type=radio]:checked + label::after {
      transform: rotateX(180deg);
    }
    .g3 {
        position: relative;
        padding: 1.5rem 2.5rem;
        border: 4px solid #000;
      }
      
      .g3:before {
        position: absolute;
        top: 4px;
        left: 4px;
        width: calc(100% - 8px);
        height: calc(100% - 8px);
        content: '';
        border: 4px dotted #000;
      }
}
@media screen and (min-width:768px) {
    .v16{
      width: 60%;
      height: 60%;
      margin:0 auto;
      text-align: center;
  }
  .v17{
    width: 50%;
    height: 50%;
      text-align: center;   
      margin:0 auto;
  }
    nav{
    border-bottom: 1px solid #ccc;
    }
    nav ul{
    display: table;
    margin: 0 auto;
    padding: 0;
    width: 80%;
    text-align: center;
    }
    nav ul li{
    display: table-cell;
    min-width: 50px;
    border-right: 1px solid #ccc;
    }
    nav ul li:first-child{
    border-left: 1px solid #ccc;
    }
    nav ul li a{
    display: block;
    width: 100%;
    padding: 10px 0;
    text-decoration: none;
    color: black;
    }
    nav ul li a:hover{
    background-color:#ccc;
    border-bottom: 5px solid #ccc;
    }
    nav ul li.current{
    font-weight: bold;
    }
    nav ul li.current a{
    border-bottom: 5px solid #00B0F0;
    color: #00B0F0;
    }
    .v2{
        width: 30%;
        height: 30%;
        margin:0 auto;
        text-align: center;
    }
    .v3{
        text-align: center;  
      }
    .v12{
      border-bottom: solid 3px black;
    }
    .v11{
        text-align: center;
    }
    nav{
    border-bottom: 1px solid #ccc;
    }
    .v2{
        width: 15%;
        height: 15%;
        margin:0 auto;
        text-align: center;
    }
    .v3{
        text-align: center;  
      }
      .v5{
        width: 0%;
        height: 0%;
        margin:0 auto;
        text-align: center;
    }
    .v4{
        width: 0%;
        height: 0%;
        text-align: center;   
        margin:0 auto;
    }
    .v5 img {
        width: 100%;
        }
    figure {
    position: relative;
    display: inline-block;
    margin-right: 20px;
    width: 400px;
    }
    figure img {
    max-width: 100%;
    vertical-align: top;
    }
    figure figcaption {
    position: absolute;
    left: 0;
    bottom: 0;
    padding: 5px 10px;
    font-size: 86%;
    color: #fff;
    }
    .v7{
        background: #fcfcfc;/*背景色*/
        padding: 0.5em 0.5em 0.5em 2em;/*ボックス内の余白*/
        border: solid 3px red;/*線の種類 太さ 色*/
        text-align: center;
        margin-left:auto;
        margin-right:auto;
        width: 20%;
        height: 20%;
      }
      
      .v6{
        line-height: 1.5; /*文の行高*/
        padding: 0.5em 0; /*前後の文との余白*/
        text-align: center;
      }
      .v8{
          color: red;
          text-align: center;
      }
      .v9{
          color: blue;
          text-decoration: none;
          text-align: center;
      }
      .v10{
        opacity: 0.5; 
        text-align: center;
      }
      .v15{
        text-align: center;
      }
    .v12{
      border-bottom: solid 3px black;
    }
    .v11{
        text-align: center;
        text-decoration: none;
    }
    .v14{
      font-size: 0%;
  }
  }
  @media screen and (max-width:768px) {
    nav{
    border-bottom: 1px solid #ccc;
    }
    nav ul{
    display: table;
    margin: 0 auto;
    padding: 0;
    width: 100%;
    text-align: center;
    }
    nav ul li{
    display: table-cell;
    min-width: 50px;
    border-right: 1px solid #ccc;
    }
    nav ul li:first-child{
    border-left: 1px solid #ccc;
    }
    nav ul li a{
    display: block;
    width: 100%;
    padding: 10px 0;
    text-decoration: none;
    color: black;
    }
    nav ul li a:hover{
    background-color:#ccc;
    border-bottom: 5px solid #ccc;
    }
    nav ul li.current{
    font-weight: bold;
    }
    nav ul li.current a{
    border-bottom: 5px solid #00B0F0;
    color: #00B0F0;
    }
    .v2{
        width: 30%;
        height: 30%;
        margin:0 auto;
        text-align: center;
    }
    .v3{
        text-align: center; 
      }
      .v4{
        width: 100%;
        height: 100%;
        margin:0 auto;
        text-align: center;
    }
    .v5{
        position: relative;
        text-align: center; 
    }
    .v5 p{
        position: absolute;
        top: 50%;
        left: 50%;
        -ms-transform: translate(-50%,-50%);
        -webkit-transform: translate(-50%,-50%);
        transform: translate(-50%,-50%);
        margin:0;
        padding:0;
        color: white;
    }
    .v5 img {
        width: 100%;
        }
    .v6{
        line-height: 1.5; /*文の行高*/
        padding: 0.5em 0; /*前後の文との余白*/
    }
    .v7{
        background: #fcfcfc;/*背景色*/
        padding: 0.5em 0.5em 0.5em 2em;/*ボックス内の余白*/
        border: solid 3px red;/*線の種類 太さ 色*/
    }
     .v8{
        color: red;
        }
     .v9{
       color: blue;
      text-decoration: none;
    }
      .v10{
       opacity: 0.5; 
    }
    .v11{
      text-align: center;
    } 
    .v12{
      border-bottom: solid 3px black;
    }
    .v14{
      font-size: 100%;
    }
    .v16{
      width: 0%;
      height: 0%;
      margin:0 auto;
      text-align: center;
    }
   .v17{
      width: 0%;
      height: 0%;
      text-align: center;   
      margin:0 auto;
   }
  }

  .comment-all {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  h3 {
    text-align: center;
    color: skyblue;
  }

  .comment1 {
    border: 1px solid skyblue;
    width: 420px;
    height: 183px;
  }
  h5 {
    margin-top: 7px;
    margin-bottom: 1px;
    padding-left: 5px;
  }

  .comment-box {
    display: flex;
    flex-direction: column-reverse;
    align-items: center;

  }

  .names {
    margin: 5px 20px 10px 0px;
    font-size: 17px;
    list-style: none;
  }

  .timestamps {
    margin: 8px 20px 10px 0px;
    font-size: 5px;
    list-style: none;
  }

  .upper-comment {
    border-bottom: 1px solid skyblue;
    display: flex;
    padding-left: 5px;
    margin-top: 8px;
    margin-bottom: 3px;
  }

  .boardtitle{
    display: flex;
    justify-content: center;
  }