css for tagline font size change in preference lite

Absolutely… in the style in question is found in the style.css file around line 289 and looks like this:

h2#site-description {
	font:normal 14px arial,sans-serif;
		font-size: 0.875rem;
	color:#8b8b8b;
	margin-bottom:0;
}

Hopefully you are going to use a child theme to make modifications, or if you are using Jetpack, you can use the css editor instead. But, if you decide to edit the size directly, the second font size shown as 0.875rem will override the 14px value. So to make it easier for you, remove the rem line and then just change the 14px size.

SWEET!! thanks soooooo much. :))))

would you be able to tell me how to get my background image to appear at the top as it is on the bottom?

you will have to modify code for that ability, but the option (although not really the best way) is to add new css:

#page-top-bg {background: none!important; border-bottom: none!important;}