centered page menu color issue and making space outside rounded corners transparent

Greetings-

I'm using Atahualpa 3.6.7 and Wordpress 3.1.3.

The issues I'm having are with the menu bar not displaying correctly. I viewed all of the other threads I thought would help to fix it, but all to no avail.

I want to fill the white spaces on either side of the centered menu (centered with %page-center) with black, just like the menu buttons.

Also, on the two drop down menus, I want the space outside the curved edges to be transparent, not white corners.

Thank you in advance for your assistance. Sorry if I missed anything in the threads already posted.

Here is what I have in the insert CSS box:

div#menu1 {background: #000000; border: solid 1px #000000
}


h1 { font-size: 34px; line-height: 1.2; margin: 0.3em 0 10px; }
h2 { font-size: 28px; line-height: 1.3; margin: 1em 0 .2em; }
h3 { font-size: 24px; line-height: 1.3; margin: 1em 0 .2em; }
h4 { font-size: 19px; margin: 1.33em 0 .2em; }
h5 { font-size: 1.3em; margin: 1.67em 0; font-weight: bold; }
h6 { font-size: 1.15em; margin: 1.67em 0; font-weight: bold; }

div#menu1 ul.rMenu li, div#menu1 ul.rMenu li a {
-webkit-border-top-left-radius: 11px;
-webkit-border-top-right-radius: 11px;
-moz-border-radius-topleft: 11px;
-moz-border-radius-topright: 11px;
border-top-left-radius: 11px;
border-top-right-radius: 11px;
-webkit-border-bottom-left-radius: 11px;
-webkit-border-bottom-right-radius: 11px;
-moz-border-radius-bottomleft: 11px;
-moz-border-radius-bottomright: 11px;
border-bottom-left-radius: 11px;
border-bottom-right-radius: 11px;}