Change background color of category dropdown on mobile

Add this code to the Custom CSS field on the Settings tab of your Blog widget’s settings:

@media (max-width: 500px) {
  [class*="Dropdown__DropdownContainer-sc"]:not(.es-category-list-item) {
    background-color: #f3e8ff !important;
  }

  .es-category-list-item {
    background-color: transparent !important;
  }
}