body {
    margin: 0;
    padding: 0;
    background-image: url('/images/MSprintDesktop.jpg'); 
    background-size: cover; 
    background-position: center; 
    background-repeat: no-repeat;
    height: 100vh;
  }

  @media (max-width: 768px) {
    body {
      background-image: url('/images/MSprintImageMobile.jpg');  
      background-repeat: no-repeat;
      background-position: center;
      background-size: contain;
    }
  }