How can CSS be used to improve the functionality of dropdown menus on mobile devices?

Dropdown menus on mobile devices can be improved by using CSS to make them more user-friendly and accessible. One way to do this is by using media queries to adjust the styling of the dropdown menu for smaller screens, such as increasing the font size, padding, or spacing between menu items. Additionally, CSS can be used to make the dropdown menu responsive, ensuring that it is easy to navigate and interact with on mobile devices. ```css @media only screen and (max-width: 600px) { .dropdown-menu { font-size: 16px; padding: 10px; } .dropdown-menu ul { padding: 5px; } .dropdown-menu li { margin-bottom: 5px; } } ```