index.html

<!-- Enter your HTML code here -->
<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <link rel="stylesheet" href="css/binaryCalculator.css" type="text/css">
    <title>Binary Calculator</title>
</head>

<body>
    <div id="res"></div> 
    <div id='btns'>
        <button id='btn0' class='buttonClass'>0</button>
        <button id='btn1' class='buttonClass'>1</button>
        <button id='btnClr' class='buttonClass'>C</button>
        <button id='btnEql' class='buttonClass'>=</button>

        <button id='btnSum' class='buttonClass'>+</button>
        <button id='btnSub' class='buttonClass'>-</button>
        <button id='btnMul' class='buttonClass'>*</button>
        <button id='btnDiv' class='buttonClass'>/</button>
    </div>


    <script src="js/binaryCalculator.js" type="text/javascript"></script>
</body>

</html>