@media (max-width: 440px) {
  .cart-button button, #header-menu-container button {
    background: #fff;
  }

  #header-menu {
    width: 100% !important;
    background: #FAFAF3;
    padding: 10px 20px;
  }

  #header-menu-container button {
    margin-right: 10px;
  }

  header {
    padding-bottom: 0px !important;
  }
}