# Using screen controls

A control is a user interface element that the user can interact with. Controls are used in PC applications, on web pages, and in mobile device applications. In Web applications, you can use HTML form and control elements or create JavaScript objects. On touch devices, the controls must be big enough to select with a finger. You can customize the controls to make them bigger.

- Creating HTML controls

- Handling text input

- Handling selection lists

- Using JavaScript controls

- Creating touch controls

- Customizing screen controls