You're composing in the wrong abstration layer, you just use the both classes and if you need any extra stuff you want, then you just create a selector for `.bt

You're composing in the wrong abstration layer, you just use the both classes and if you need any extra stuff you want, then you just create a selector for `.btn-warning.warning-text.my-btn` and as the selector is more specific than the classes that is uses then you can override the functionality it inherits.