How do themes in Liferay adjust to different devices?

Themes in Liferay adjust to different devices primarily by utilizing CSS media queries. This approach allows developers to create responsive designs that can adapt based on the characteristics of the device being used, such as its screen size, resolution, and orientation.

CSS media queries enable developers to apply different styles based on defined criteria, such as the width of the viewport. For instance, a theme can specify certain styles for mobile devices that differ from those intended for desktop computers, ensuring that the user experience is optimized for each device. This responsive design approach is integral to modern web development and enhances accessibility, making it easier for users to interact with the content regardless of their device.

While various techniques can be used in conjunction with CSS media queries—such as JavaScript functions for additional functionality and detecting user agents to tailor experiences—media queries remain the primary method for achieving a responsive design in Liferay themes. This technique allows for a single codebase to serve multiple types of devices effectively, streamlining development and maintenance.