@media (max-width: 768px) {
  .header {
    min-height: 100px;
  }
  .navbar-light {
    display: flex;
    justify-content: space-between;
  }
  .cont_left, .cont_right {
    width: 100%;
    max-width: 100%;
  }
  .cont_left *, .cont_right * {
    max-width: 100%;
  }
}