How To Highlight Email Html Text In Google Apps Script?

I'm using a script to email a confirmation after a google form is filled out. I am using HTML in the email and want to highlight a few lines in yellow. I am using the code below

Solution 1:

You'll need to either escape your quotes with backslashes or use apostrophes instead for the HTML attributes.

Also, there's probably no reason to break out the <br> tag as you have.

+ "<h2><b><spanstyle='background-color:yellow;'>Content</span></b></h2><br/>"