Untitled

<!DOCTYPE html>
<html>
    <head>

    </head>
    <body>
        <h1 class="otac">Zika</h1>
        <h1>Perkan</h1>
        <h1>Gita</h1>


        <script type="text/javascript">
            var x=0;
            var kola = new Array();
            kola[0] = "fica";
            kola[1] = "honda";
            kola[2] = "jugo";

            var y = document.querySelector("otac");
            window.alert(y);
            y.style.color = red;


        </script>

    </body>
</html>