How do you highlight text using the notes app on the MacBook

How do you highlight text using the notes app on the MacBook there is only a box to change the color of the font of the text but I want to highlight the words and change the color ? Is this because of the update is there no more highlighting just like if a read a book I should be able to use a marker and highlight text that I want to stand out! ? I have MacBook pro using the notes app..Mac OS sierra 10.13.3