Very large Canvas? Dont see text in display when test run

New to Unity and following a course.
When creating a Canvas for the UI /HUD. It look like the canvas is too big. The playfield is almost not visible when viewing the text. This was default with resolution setting 800x600. Dev computer has
1440x900 And canvas was set to adjust to screen.

This is a problem for me. If i want to make a text keeping track of the score on the game screen.
I cant see it. I have moved the playfield, tried to change the options on the canvas.

If unity shall do it when play testing, then it does not do it for me.

What is wrong ?