thewordsaves on "Remove images and edit font size in footer"

Hi all,

I am trying to edit my footer for the Tekpals TPsunrise template. I believe I found the code in the style.css but I'm not sure how to "override" this in my child theme.

I would like the background images removed and the font enlarged from x-small. Would someone please tell me what to put into my child them style.css in order to override the parent theme?

I believe the font sizes are: small, medium, x-large, etc. but again, I'm not sure of the code to put into my child theme to make this happen.

Same thing for the background images. What code in child theme style sheet will make this disappear?

Here is the code:

#footer {
clear: both;
height: 43px;
width: 100%;
background-image: url('images/footer_bg2.gif');
}
#footer_txt {
background-image: url('images/footer_bg1.gif');
height: 18px;
color: #180509;
font-size: x-small;
text-align: center;
line-height: 18px;

Any help would be so greatly appreciated, including links to tutorials, etc. as it is obvious that I don't code.

Thanks!