The layout section contains 3 layout options that are also a shortcut to common layouts and sizing:
The location types
You can define what layout options to use or use none at all.
The positions are the same the ones listed in the CSS position property:
The location types are the properties used for moving an element to a specific location:
The size type options are the properties used for setting the size:
The default option for layout is absolute, using constraints such as top and left and setting both width and height.