h1{
  text-align: center;
  margin: 50px 0;
  font-size: 2.6rem;
}
h2{
  font-size: 2.0rem;
  font-weight: bold;
  margin-bottom: 20px;
}

.col{
  margin-bottom: 80px;
}
.col .ttl{
  font-size: 2.6rem;
  border-bottom: 1px solid #333;
  margin-bottom:40px;
}
.col .flex {
  display: flex;
}
.col .flex .img{
  width: 50%;
  margin-right: 3%;
}
.col .flex .text p{
  margin-bottom: 1em;
}



  @media screen and (max-width: 800px){
    .col .ttl{
      font-size: 2.0rem;
      margin-top: 40px;
    }
    .col .flex{
      display:block;
    }
    .col .flex .img{
      width: 100%;
      margin-right: 0;
    }

  }