One pixel line alignment

Hi all- super new here and trying to practice by mimicking a design I created in xd. I’m having a bit of trouble aligning this one pixel line- as seen in this screenshot and wondering what’s the best practice of doing so? Thank you in advance!


Here is my site Read-Only: https://preview.webflow.com/preview/robins-fantabulous-site-a6b4ed?utm_medium=preview_link&utm_source=designer&utm_content=robins-fantabulous-site-a6b4ed&preview=8dd9aa91651eda3abf18e2bda9a3354a&workflow=preview

I would put the the text in a div and then wrap the line and the text-div in a flexbox.