# Fluid Elements Until now, we have mostly looked at some simple graphical elements and how to arrange and manipulate them. This chapter is about how to make these changes more interesting by animating them. Animations are one of the key foundations for modern, slick user interfaces, and can be employed in your user interface via states, transitions and animations. Each state defines a set of property changes and can be combined with animations on state changes. These changes are described as a transition from one state to another state. Besides animations being used during transitions, they can also be used as standalone elements triggered by some scripted events. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.novaflowos.com/start/qt6-qml-book/readme/ch05-fluid/fluid-elements.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.