` elements have been added compared to the default code. The purpose of these child `
` elements is as follows:
- `aie-container-header`: Used to fill the header menu content.
- `aie-container-main`: Used to fill the middle editing area.
- `aie-container-footer`: Used to fill the footer content.
The order, position, structure, and nesting depth of these three child `
` elements can be changed in any way to achieve the desired layout. However, they must all be wrapped within a `
` with the class name `aie-container`. This allows us to implement any layout we want.