Don’t change horses completely, that’s the way to the mud. If you’re good at java, get a java web fw/lib from a “simple web1 but practical” category and after few key experiments you’ll see your app-to-web migration roadmap.
For styling take Bulma or Bootstap (or any of “most popular css frameworks” except Tailwind), they work right out of box and require little knowledge.
For styling take Bulma or Bootstap (or any of “most popular css frameworks” except Tailwind), they work right out of box and require little knowledge.