.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 65px;
    z-index: 9999;
    transition: background-color 0.3s ease;
}

@media (max-width: 768px) {
  .site-header {
    height: 55px;
  }
}

@media (max-width: 1024px) {
  .site-header {
    height: 60px;
  }
}

.site-header.header-colored {
    background-color: #232529;
}