TwinColSelect, unfortunately select doesn't work

Hello, could you tell me whether i’m doing smth wrong.
So, i use vaadin 25.0.0 and twincolselect:4.0.0.
And it almost work, so i see both columns with items inside, but seems smth with styles. On clicking they don’t become active. So it’s not possible to choose items.
Not sure whether i should add some styles or smth.
My codes is like:

@StyleSheet("styles.css")
public class AppShell implements AppShellConfigurator {

@Override
public void configurePage(AppShellSettings settings) {
    AppShellConfigurator.super.configurePage(settings);
}


@Route("twincolselect")
public static class TwinColTest extends VerticalLayout {

    public TwinColTest() {
        TwinColSelect<String> test = new TwinColSelect<>();
        test.setWidth("500px");
        test.setItems("Test 1", "Test2", "Test 3");

        add(test);
    }
}
}

it resulst to

Am i lost smth?

sorry, seems i’m too stupid. I’ve solved it.
i’ve added to my styles.css

@import url(‘…/lumo/lumo.css’);
@import url(‘…/twincolselect.css’); <----- this was added

Thank you :)