go-sample-webpage/pkg/user/templates/register.tmpl

<form method="post">
    <label>E-Mail</label>
    <input type="text" name="email" class="form-control" placeholder="E-Mail"></input>
    <label>Username</label>
    <input type="text" name="username" class="form-control" placeholder="Username"></input>
    <label>Password</label>
    <input type="password" name="password" class="form-control" placeholder="Password"></input>
    <input type="submit" class="btn btn-success" value="Register"></input>
</form>