@media (min-width: 991.98px) {
    .custom-card {
      height: 30vw;
    }
  
    .img-perks {
      margin-right: -10%;
    }
  
    .download-app-icon{
      margin-right: -25%;
    }
  
   .intro{
      margin-top: -15%;
      margin-bottom: -10%;
    }



  }
  
  @media (max-width: 992px){
    .student-img{
      margin-top: -30%;
      margin-bottom: -30%;
      animation-name: bounce;
      animation-duration: 4s;
    }
  
    .img-card{
      margin-top: -20%;
    }
  }

  .animation-duration-1{
    animation-duration: 1s;
  }
  
  .animation-duration-2{
    animation-duration: 2s;
  }
  .animation-duration-3{
    animation-duration: 3s;
  }