package com.example; import com.vaadin.flow.theme.aura.Aura; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import com.vaadin.flow.component.dependency.StyleSheet; import com.vaadin.flow.component.page.AppShellConfigurator; import com.vaadin.flow.component.page.Push; @SpringBootApplication @StyleSheet(Aura.STYLESHEET) @StyleSheet("styles.css") // Your custom styles @Push public class Application implements AppShellConfigurator { public static void main(String[] args) { SpringApplication.run(Application.class, args); } }