Example
Before
Limited time only
After
𝐿𝑖𝑚𝑖𝑡𝑒𝑑 𝑡𝑖𝑚𝑒 𝑜𝑛𝑙𝑦
How it works
Letters are replaced with italic look-alikes from the Unicode “Mathematical Alphanumeric Symbols” block, so the style is part of the text itself. Unicode has no italic digits, so numbers stay upright.
Things to know
Screen readers may read these characters oddly or skip them, and search engines don’t treat them as ordinary words. Use them for a word or two of emphasis, not for whole posts, usernames you want people to search for, or anything that needs to be accessible.