The selection on this text will be green on orange background.

The selection on this text will be invisible

The selection on this text will be blue on yellow background

The selection on this text will be purple on yellow background in the first line,
and green on yellow background in the second line

The selection on this text will be blue on yellow background, except the first letter of the paragraph which will be red on yellow background.

The selection on this text will be invisible

The selection on this text will be blue on yellow background

The selection on this text will be blue on transparent background