.index_presentation {
    height: 100vh;
    padding: 8% 0 5% 0;
    background: url(/Files/App_002/Images/presentation_index.jpg) no-repeat center top;
    background-size: cover;
    background-attachment: fixed;
}
.index_presentation p {
    text-align: justify;
    font-weight: 500;
    font-size: 15px;
}
@media (max-width: 1440px) {
  .index_presentation {height: auto;padding: 50px 0;}
}

@media (max-width: 767px) {
  .index_presentation {
    padding: 30px 0;
  }
}