React form complication 1

medium-react-register.html

<div>
    <h1>Register</h1>
    <div>
        <label>Username</label>
        <input type="text" name="username" />
    </div>
    <div>
        <label>Password</label>
        <input type="password" name="password" />
    </div>

    <div>
        <button>Register</button>
    </div>
</div>