How can I change option styles in Opencart?

Question

opencart

Hello.
How can I change option styles in Opencart?
It is necessary to change only one option, and not all of its type.
For example: I need to change the length option of which the list type is (The rest of the options for which this type does not need to be changed).

Answer 1

forum.opencart-russia.ru/threads/stilizacija-vyvod...
Everything is there.