#contents_mainimg {
  background-image: url(https://img.freepik.com/free-vector/realistic-tropical-leaves-background_52683-62078.jpg);
  width: 100%;
  height: 80vh;
  z-index: -100;
  background-size: 100vw auto;
}

@media only screen and (max-width: 600px) {
  #contents_mainimg {
    width: 100%;
    height: 44vh;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
  }

  .therapist-img {
    width: 46vw;
    height: auto;
  }

  .subtitle {
    font-size: 2.5vw;
  }

  .main-statement_eng {
    font-size: 4vw;
  }
  .hula{
    margin-top: -20%;
  }
}

@media only screen and (max-width: 1200px) {
  #homePage {
    width: 100%;
    margin: auto;
  }
}