#body{
    margin: 1.2rem auto; 
    /* max-width: 960px; */
    width: 80%;
    background-color: rgb(182, 216, 216);
}

#simpleUseCase{
    /* height: 50rem; */
    /* min-width: 960px; */
    width: 80%;
}

@media screen and (min-width: 601px) {
    html {
      font-size: 16px;
    }
  }
  
  /* If the screen size is 600px wide or less, set the font-size to 12px */
  @media screen and (max-width: 400px) {
    html {
      font-size: 9px;
    }
  }

  @media screen and (max-width: 600px) and (min-width: 401px) {
      html{
          font-size: 12px;
      }
  }