consider using an html entity to represent the & special character to ensure that the character displays correctly across all browsers. more info can be found here - https://www.w3schools.com/html/html_entities.asp
So @franfranfranfran, I would instead write &? It is showing properly on the website which is good, but the & symbol is still highlighted red in Atom.
https://github.com/mcnoble/prj-rev-bwfs-dasmoto/blob/master/Art%20Website/index.html#L9
consider using an html entity to represent the & special character to ensure that the character displays correctly across all browsers. more info can be found here - https://www.w3schools.com/html/html_entities.asp