<!DOCTYPE html> <html> <head> <title>Hello World!</title> <style> html, body { margin: 0; } #app { width: 80vh; margin: auto; height: 100vh; } .container { padding: 5%; } .container p { font-size: 40px; text-align: center; } </style> </head> <body> <div id="app"> <div class="container"> <p>Hello World!</p> <br> </div> </div> </body> </html>
