This “8203;” HTML character is intended for line break control; it has no width, but its presence between two characters does not prevent increased letter spacing in justification. For more details
What is “​” HTML character?
The HTML character is intended for line break control; it has no width, but its presence between two characters does not prevent increased letter spacing in justification
Why is being injected into my HTML?
It must be inserted by some accident, most likely by a buggy editor trying to do smart things with whitespace or highlighting, or an end-user using a keyboard language wherein this character is natively been used, such as Arabic.
How to Solve this HTML character?
Download and use Brackets (Free). When pasting the code into brackets, the zero-width spaces are shown up as red dots. Just remove the red dots and check.