Thymeleaf: how to use conditionals to dynamically add/remove a CSS class

Question

By using Thymeleaf as template engine, is it possible to add/remove dynamically a CSS class to/from a simple div with the th:if clause?

Nor

Answer 1

What @Nilsi mentioned is perfectly correct. However, adminclass and user class need to be wrapped in single quotes as this might fail due to Thymeleaf looking for adminClass or userclass variables which should be strings. That said,

it should be: -

or just: