@media only screen and (max-width: 600px) {
  .main-menu {
    margin-top: 0;
  }
}

@media only screen and (max-width: 576px) {
  .title-colur {
    font-size: 1.3rem;
  }
  .breadcrumb-text {
    font-size: 0.75rem;
  }
}