oboto:wght@100;300;400;500;700;900&display=swap" rel="stylesheet">
</head>
<body>
    <div id="calculator">
        <div id="display">
            <p id="calculation">&ensp;</p>
            <p id="result">&ensp;</p>
        </div> 
        <div id="buttons">
            <div class="row">
                <button class="teal function" id="ac">AC</button>
                <button class="teal function" id="invert">±</button>
                <button class="teal function" id="modulo">%</button>
                <b