Addition that allows you to distinguish words or sentences

Commercial order from the freelance exchange Upwork. The app is created using the pure #html #css #Javascript. The task is part of a bigger project.

Review from the customer (5 stars):
"Viktor was a great find, nice to work with and got the job done exactly the first time. I hire a lot of contractors throughout the year (check my profile, I do a lot of hiring on here) and Viktor is definitely going into the "saved freelancers" list. I'll not hesitate on hiring again, great coding and front-end product, got me something I thought was difficult and maybe not possible, and did it exactly right. Great find, great guy, great work.