                <button class="function" id="backspace" data-key="">⌫</button>
                <button class="number" data-key="0">0</button>
                <button class="number" data-key="." id="decimal">·</button>
                <button class="pink function" id="equal">=</button>
            </div>
        </div>
    </div>
</body>
</html>