<?= //Html::submitButton('Login', ['class' => 'btn btn-primary btn-block', 'name' => 'login-button']) ?> code example
Example: bootstrap buttons Toggle states
Add data-toggle="button" to toggle a button’s active state. If you’re
pre-toggling a button, you must manually add the .active class and
aria-pressed="true" to the <button>.
<button type="button" class="btn btn-primary" data-toggle="button" aria-pressed="false">
Single toggle
</button>