ta-key="ZERO">0</button>
        <button data-key="MINUS">-</button>
        <button data-key="EQUAL">=</button>
        <button data-key="BACKSPACE" style="width: 102px">&larr;</button>
        <div class="spacer-small"></div>
        <button data-key="FN_KEY">fn</button>
        <button data-key="HOME">&#8598;</button>
        <button data-key="PAGE_UP">&#8593;</button>
        <div class="spacer-small"></div>
        <button data-key="CLEAR">Clear</button>
        <button data-key="NUMPAD_EQUAL">=</butto