I have a span class that I’m attempting to target the H1 in to style however its not working.

Here is my html.

```
<div class="col-md-9">
                <span class="testimonial"><h1>Testimonial</h1></span>
</div>

```

and my css

```
.testimonial h1 {
    font-size: 16px;
    font-weight:bold;
}

```

Am I not using the CSS correctly?