source: src/main/resources/templates/login.html

<div>
<form th:method="POST" th:action="@{/login}">
    <div class="container">
        <form class="form-signin mt-xl-5" method="post" action="/login">
            <h2 class="form-signin-heading">Најава</h2>
            <p>
                <label for="username" class="sr-only">Корисничко име</label>
                <input type="text" id="username" name="username" class="form-control" placeholder="Корисничко име" required="" autofocus=""/>
            </p>
            <p>
                <label for="password" class="sr-only">Лозинка</label>
                <input type="password" id="password" name="password" class="form-control" placeholder="Лозинка" required=""/>
            </p>
        </form>
        <button id="submit" class="btn btn-lg btn-primary btn-block" type="submit">Најава</button>
    </div>
</form>
<a href="/register" class="btn btn-block btn-light">Регистрирај се</a>
</div>