JavaScript - Dar estilos a una salida document.write

<script>

let d = new Date();

var weekday = new Array(7);

weekday[0] = "domingo. Descanso";

weekday[1] = "lunes. Remo";

weekday[2] = "martes. Descanso";

weekday[3] = "miercoles. Bicicleta";

weekday[4] = "jueves. Descanso";

weekday[5] = "viernes. Remo";

weekday[6] = "sabado. Descanso";

var n = weekday[d.getDay()];

document.write("<h2 style='color:#0000ff;text-align:center'>" +n+ "</h2>");

</script>

<script>

let d = new Date();

var weekday = new Array(7);

weekday[0] = "<h2 style='color:#0000ff;text-align:center'>domingo. Descanso</h2>";

weekday[1] = "lunes. Remo";

weekday[2] = "martes. Descanso";

weekday[3] = "miercoles. Bicicleta";

weekday[4] = "jueves. Descanso";

weekday[5] = "viernes. Remo";

weekday[6] = "sabado. Descanso";

var n = weekday[d.getDay()];

document.write(n);

</script>