jQuery Dimensions

<!DOCTYPE html>
<html>
<head>
    <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
</head>
<body style="font-family: sans-serif; padding: 20px;">
    <div id="kotakDimensi" style="width:200px; padding:15px; border:5px solid #0d2e5c; background:#e0f2fe;">
        Kotak Dimensi
    </div>
    <button id="btnUkur" style="margin-top:10px;">Ukur Lebar Elemen</button>

    <script>
        $('#btnUkur').click(function() {
            alert("Lebar Konten murni: " + $('#kotakDimensi').width() + "px
" +
                  "Lebar Total (outerWidth): " + $('#kotakDimensi').outerWidth() + "px");
        });
    </script>
</body>
</html>