:root{
    font-size: 16px;
    line-height: 1.5;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #545454;
    --body-bg-color: black;
    --frame-bg-color: #1A1A1D;
  }
  body{
    font-size: 1.5rem;
    background-color: black;
    
  }
  
  .mainframe{
    display: flex;
    flex-direction: column;
    background-color: #1A1A1D;
    margin-top: 1rem;
    margin-bottom: 5rem;
    margin-left: 1rem;
    margin-right: 1rem;
    padding-top: 2rem;
    padding-bottom: 2rem;
    justify-content: center;
    align-items: center;
  }
  
  /* s-screen  */
  @media screen and (max-width: 500px) {
  }
  
  /* m-screen  */
  @media screen and (min-width: 501px) and (max-width: 1023px) {
  }
  
  /* l-screen  */
  @media screen and (min-width: 1024px) {
  }