h2{
  font-size: 2.0rem;
  font-weight: bold;
  margin-bottom: 20px;
}
.ttl{
  font-size: 2.2rem;
  font-weight: bold;
  margin-bottom: 80px;
}
.deta{
  background-color: #043eb9;
  padding: 40px 0;
  margin: 40px auto;
}
.deta .flex {
  display: flex;
  flex-wrap: wrap;
}
.deta h3{
  text-align: center;
  margin-bottom: 40px;
  font-size: 3.0rem;
  font-weight: bold;
  color: #fff;
}
.deta .flex .box{
  width: 32%;
  border: 1px solid #333;
  padding: 50px;
  box-sizing: border-box;
  margin-right: 2%;
  margin-bottom: 3%;
  background: #fff;
}
.deta .flex .box:nth-child(3n){
  margin-right: 0;
}
.deta .flex .box .ttl{
  margin-bottom: 20px;
  text-align: center;
}
.box .notice{
  font-size: 1.4rem;
}
  @media screen and (max-width: 800px){
    .ttl{
      font-size: 1.8rem;
    }
    .deta h3{
      font-size: 2.2rem;
    }
    .deta .flex .box{
      padding: 30px;
    }
    .box .ttl{
      margin-bottom: 20px;
      text-align: center;
    }
    .box .notice{
      font-size: 1.4rem;
    }
  }

  @media screen and (max-width: 600px){
    .ttl{
      margin-bottom: 40px;
    }
    .deta h3{
      font-size: 2.0rem;
    }
    .deta .flex .box{
      padding: 10px;
    }    
    .box .ttl{
      font-size: 1.6rem;
    }
    .deta .flex .box{
        width: 48%;
    }
    .deta .flex .box:nth-child(3n){
      margin-right: 2%;
    }
    .box .notice{
      font-size: 1.2rem;
    }    
  }