How to use custo

[Tirus-zoe]

i want to use custom css in semantic ui component
for example
{{#ui-button class='background-color' theme="basic"}}button{{/ui-button}}
how to create background-color class?
i write class background-color in app.css does not work
Pls help me

[zhyq0826]

@Tirus-zoe Use theme attr, you must override some semantic-ui css style use !important. Theme attr behave as html class.