@media screen and (max-width: 1399px) {
  // Banner Responsive  
    .video-box {
        left: 0;
        width: 400px;
    }
    .banner-sec{
      h1{
        font-size: 50px;
        margin-bottom: 30px;
      }
    }
    .font-20{
      font-size: 18px;
    }
}
@media screen and (max-width: 1199px){
  .video-box {
    width: 350px;
  }
  .banner-sec{
    .img-box {
      top: 40px;
    }
  } 
}