<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Semantic UI Template</title> <link rel="stylesheet" href="styles.css"> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.slim.min.js" crossorigin="anonymous"></script> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/semantic.min.css"> <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/semantic.min.js"></script> </head> <body> <div class="main"> <h1>Hello World!</h1> <!-- Registration Form --> <form class="ui form"> <div class="field"> <label>Name</label> <input type="text" name="name" placeholder="Your Name"> </div> <div class="field"> <label>Email</label> <input type="email" name="email" placeholder="Your Email"> </div> <button class="ui button" type="submit">Register</button> </form> <button id="hi" class="ui basic button"> <i class="icon user"></i> Say Hi! </button> <div id="alert" class="ui visible message" style="display:none;"> <p>Hello!</p> </div> </div> <script src="script.js"></script> </body>