òajlsd asdòkn asdm Ciao! It's Config!
Consistent with real life: in line with the process and logic of real life, and comply with languages and habits that the users are used to;
Consistent within interface: all elements should be consistent, such as: design style, icons and texts, position of elements, etc.
Operation feedback: enable the users to clearly perceive their operations by style updates and interactive effects;
Visual feedback: reflect current state by updating or rearranging elements of the page.