Page Formatting Mystery

In an effort to not waste space, I cannot figure out how to reduce an area near the top of my page that Inspect Element only identifies as “” 586px x 132px.

I know the area inside that box is 586px x 108px and I can easily change the width & height; but not the mysterious .

What I would like to do is reduce the 132px height to 108px. Any suggestions greatly appreciated (will attach image, website is