
                <div class="spacer-small"></div>
                <button data-key="NUMPAD_SEVEN">7</button>
                <button data-key="NUMPAD_EIGHT">8</button>
                <button data-key="NUMPAD_NINE">9</button>
                <button data-key="NUMPAD_MINUS">-</button>
            </div>
            <div class="row">
                <div class="spacer-small"></div>
                <div class="spacer-key"></div>
                <div class="spacer-key"></div>
                <div class="spacer-