How image or video drive(fit) in container?

1. object-fit property is used.
2. object-fit: fill | contain | cover | none.
1. fill - Normal size. If require then stretch. (default).
2. contain - Maintain aspect ratio.
3. cover - Fill total area with aspect ratio.
4. none - Not resized.
5. scale-down -  Smaller size while contain and none were specified.
3. Can I use only height and width property?
1. Width and height property only fit with container but object-fit resize with container.