Widget height Before Content

I am using the Frontier theme and want to have a narrow line of text above the center content area. I tried putting the text in the title are of the content, but that doesn’t allow me to center the text and change the font and color.

I added a widget in Before Content for the text but it is too high and takes up too much space, pushing the content lower than the side bars. I tried modifying the borders, etc. in the Stylesheet but that didn’t work and makes the borders for all the widget sections too narrow:

.frontier-widget {
background-color: #FFF;
margin: 0 0 1px;
padding: 5px;
padding-top: 0px;
padding-bottom: 0px;
border: 1px solid #555;
box-shadow: 0 0 2px #333;
word-wrap: break-word;
}

The website is: whchurchofchrist.org

Is there a way to modify just this one widget to make it a narrow line of text above the content?

Thanks.