I can create just the front end of a web app with React javascript framework, and for CSS I will use Tailwindcss for design, it will be fully responsive for any screen device with the best UI design. also, I can design for both RTL and LTR websites.
Why should You use Web application instant of regular websites?
web applications is a Single Page application the project is based just on a 1 page HTML project With the smallest file size. the web app is 10 times faster than the regular app created with HTML or hp or WordPress, etc.