main{
    position:absolute;
    width:100%;
}
.about img{
    position:relative;/*relative*/
    width:100%;
    height:auto;
    z-index: 1;
}
.about .font{
    position:relative;/*relative*/
    z-index: 2;
    color:#ffffff;
    font-family:'Times New Roman', Times, serif;
    font-size: 40px;
    margin: 0 auto;
}
.about .font 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;
    z-index: 2;
    text-shadow: 3px 1px 0 #000;
}

.business_body img{
    width:55%;
    height:auto;
    margin:10px;
}
.business_body .flex .box div{
    position:relative;
}

.business_body .flex  p{
    font-size: 25px;
}
.staff_body{
    width:100%;
}
.staff_body img{
    border-radius:100%;
    width:20%;
    height:auto;
    margin:5px;
}

.staff_body .flex .box22{
    width:295px;
    padding: 0.5em 1em;
    margin: 1em 0;
    background: #f4f4f4;
    border-left: solid 6px rgba(0,179,121,0.5);
    box-shadow: 0px 2px 3px rgba(0, 0, 0, 0.33);
}

.staff_body .flex h4{
    font-size:23px;
}
.partners_body .box{
    border: 0.1px solid;
    border-color: rgba(0, 0, 0, 0.25);
    border-radius: 8px; 
    box-shadow: 8px 8px 0px 0 rgba(0, 0, 0, 0.33);
    margin:10px;
    padding:10px;
}

.partners_body a img{
    width:50px;
    height:auto;
}

.partners_body h4{
    font-size:30px;
    font-family: 'Times New Roman', Times, serif;
}

.join{
    width:60%;
    height:auto;
}
.join ul {
    padding: 0;
  }
  
.join ul li {
    color: #404040;
    border-left: solid 6px #1fa67a;/*左側の線*/
    border-bottom: solid 2px #dadada;/*下に灰色線*/
    background: whitesmoke;
    margin-left: 10px;
    margin-bottom: 5px;/*下のバーとの余白*/
    line-height: 1.5;
    padding: 0.5em;
    list-style-type: none!important;/*ポチ消す*/
    font-weight: bold;
    font-size: 30px;
  }

  .join ul li img{
    width:40px;
    height:40px;
  }
  .tour_box {
    width:70%;
    height:auto;
    margin: 20px auto;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  }
  .tour_box img{
    width:80%;
    margin: 20px auto;
  }

  .tour_box .block{
    display:flex;
    margin: 0 auto;
  }

  .tour_box .block div{
    width:100%;

  }
  .tour_box .block div h3{
    text-align: center;
    font-size: 32px;
  }
  .tour_box .block div p{
    font-size: 20px;
  }

  .youtube {
    text-align: center;
  }

  .youtube h2 {
    position: relative;
    display: inline-block;
    height: 128px;/*64px*/
    margin-left: 30px;
    padding: 1rem 2rem 1rem 3rem;
    color: #fff;
    background: #fa4141;
    font-size: 30px;
  }
  
  .youtube h2:before {
    position: absolute;
    top: 0;
    left: -30px;
    content: '';
    border-width: 64px 30px 64px 0;/*32px 30px 32px 0*/
    border-style: solid;
    border-color: transparent #fa4141 transparent transparent;
  }
  
  .youtube h2:after {
    position: absolute;
    top: calc(50% - 7px);
    left: -10px;
    width: 14px;
    height: 14px;
    content: '';
    border-radius: 50%;
    background: #fff;
  }
  

@media screen and (max-width:540px){
    .about .font p{
        font-size:20px;
    }
    .business_body .flex p{
        font-size: 18px;
    }
    .tour_box {
        width:90%;
      }
      .tour_box img{
        width:90%;
      }
    
      .tour_box .block{
        display:block;
      }
      .tour_box .block div{
        width:100%;
    
      }
      .tour_box .block div p{
        font-size: 20px;
      }
      .tour_box .block div h3{
        font-size: 25px;
      }

      .youtube iframe{
        width:275px;
        height:auto;
      }

      .youtube h2 {
        font-size: 17px;
        height:66px;/*64px*/
      }

      .youtube h2:before {
        border-width: 36px 30px 30px 0;/*32px 30px 32px 0*/
      }
      
}
@media screen and (541px <= width < 920px){
    .tour_box {
        width:70%;
      }
      .tour_box img{
        width:90%;
      }
    
      .tour_box .block{
        display:block;
      }
      .tour_box .block div{
        width:100%;
    
      }
      .tour_box .block div p{
        font-size: 20px;
      }
      .tour_box .block div h3{
        font-size: 29px;
      }
}

@media screen and (min-width:920px){
    .business_body .flex{
        display:flex;
    }
    .business_body .flex .box{
        display: table-column;
    }
    .staff_body .flex{
        display:flex;
    }

    .partners_body{
        margin:0 auto;
    }
    .partners_body .box{
        width:300px;
        height:auto;
    }
    .partners_body .flex{
        display: flex;
        text-align: center;
    }
    .partners_body .img_link a img{
        width:70%;
    }
    .partners_body .flex .box{
        display: table-column;
    }
    .partners_body h4{
        font-size:20px;
        font-family:monospace;
    }
}

@media screen and (max-width:920px){

    .business_body img{
        width:100%;
        height:auto;
        margin:0 auto;
    }

    .staff_body{
        width:100%;
        margin: 0 auto;
    }
    .staff_body img{
        width:90%;
        height:auto;
        display: block;
        margin: auto;
    }
    .staff_body .flex .box22{
        width:90%;
        height:auto;
        display: block;
        margin: auto;
    }
    .staff_body .flex .box22 p{
        margin:0;
        padding:0;
    }
    .staff_body .flex h4{
        text-align: center;
        font-size:25px;
    }
    .staff_body .flex h5{
        text-align: center;
    }
    .partners_body{
        width:100%;
        text-align: center;
    }
 
    .partners_body .img_link a img{
        width:55%;
        margin-left: 15%;
        margin-right: 15%;
    }

    .partners_body a img{
        width:30px;
        height:auto;
    }
    .partners_body h4{
        text-align: left;
        font-size:15px;
    }
    .partners_body .small_flex{
        display: flex;
    }    
    .partners_body .small_flex img{
        text-align: center;
    }

    .join{
        margin:0 auto;
        width:90%;
    }
    .join ul li {
        font-size: 20px;
        margin-left:0px;
      }

}