CSS - Stylesheet Doesn't Display Properly In Netscape/ff

This stylesheet was developed by volunteers (local students) who weren't asked to design for cross-browser compatibility.

In FF and Netscape the background CSS 'runs out' before the content does (problematic with black background) and there isn't any space between objects (adjoining columns, text etc.).

Because I need to make the fix asap (and I am not well versed in CSS for layout) my options here are a) pay my ISP web team to make the adjustments, b) redesign site templates using tables (which I can do, but I know is regressing) or c) get some specific feedback from you folks. The code does not validate (re. W3C CSS Validator) but I'm not experienced enough in this to know how to fix it.

In the long-term, I am definitely looking to improve my knowledge in this area and appreciate your patience with me.

I have copied the code below. Many thanks for any feedback, resources, pointers etc. you may be able to provide.



body{
background-color: Black;
background-position: center;
text-align: center;
vertical-align: center;
margin: 2px;
}

h4{
font-family: Arial, Helvetica, sans-serif;
font-size: 9pt;
font-weight: bolder;
color: black;
}

h6{
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 7.5pt;
font-weight: normal;
color: black;
}

h1{
font-family: Arial, Helvetica, sans-serif;
font-size: 10pt;
font-weight: bolder;
color: black;
text-transform: uppercase;
}

h2{
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 9pt;
font-weight: bold;
color: #8B0000;
}


div#wrapper{
background-position: center;
background-color: #F0F1EB;
width: 762px;
height: 420px;
margin: 0px;
border: 1px solid #black;
padding: 0 px;


}

div#top{
background-position: center;
background-image: url(../images/top.jpg);
width: 760px;
height: 123px;
margin: 0px;
border: 0px;
padding: 0 px;
text-align: right;
vertical-align: top;
text-transform: uppercase;
}

div#toplinks{
background-position: center;
width: 634px;
height: 15px;
margin: 0px;
border: 0px;
padding: 2 px;
float: right;
vertical-align: top;
font-family: Arial, Helvetica, sans-serif;
font-size: 10px;
font-weight: bolder;
text-align: center;
color: white;

}

div#midlinks{
background-position: center;
background-color: #F0F1EB;
width: 760px;
height: 17px;
margin: 0px;
padding: 0 px;
border-bottom: 1px solid #9E9E9E;;
border-left: 0px;
border-right: 0px;
border-top: 1px solid #9E9E9E;
}


div#midleft{
background-color: white;
width: 126px;
height: 16px;
margin: 0px;
padding: 6 px;
float: left;
border-bottom: 0px;
border-left: 0px;
border-right: 1px solid #9E9E9E;
border-top: 0px;
text-transform: uppercase;
color: red;
font-family: Arial, Helvetica, sans-serif;
font-size: 11px;
font-weight: bolder;
text-align: right;


}

div#midleft a, div#midleft a:hover, div#midleft a:visited, div#midleft a:active{
text-transform: uppercase;
color: red;
font-family: Arial, Helvetica, sans-serif;
font-size: 11px;
font-weight: bolder;
text-align: right;
text-decoration: none;
}

div#midright{
width: 631px;
height: 16px;
margin: 0px;
padding: 6 px;
float: right;
border:0px;
font-family: Arial, sans-serif;
font-size: 11px;
font-weight: bolder;
text-align: left;
color: white;
text-transform: uppercase;

}

div#midright a, div#midright a:hover, div#midright a:visited, div#midright a:active{
font-family: Arial, sans-serif;
font-size: 11px;
font-weight: bolder;
text-align: left;
color: #990000;
text-transform: uppercase;
text-decoration: none;
}

div#left{
background-position: center;
background-color: #F0F1EB;
width: 125px;
margin: 0px;
padding: 7 px;
float: left;
border-bottom: 0px;
border-left: 0px;
border-right: 0px;
border-top: 0px;
text-transform: uppercase;
color: black;
font-family: Arial, Helvetica, sans-serif;
font-size: 10px;
font-weight: 900;
text-align: right;
}

div#left a, div#left a:hover, div#left a:visited, div#left a:active{
text-transform: uppercase;
color: #990000;
font-family: Arial, Helvetica, sans-serif;
font-size: 10px;
font-weight: 900;
text-align: right;
text-decoration: none;
}

div#main{
background-position: center;
background-color: White;
width: 635px;
height: 470px;
margin: 0px;
padding: 0 px;
float: right;
border-left: 1px solid #9E9E9E;

}


div#mainl{
background-position: center;
background-color: white;
width: 310px;
height: 289px;
margin: 0px;
border: 0px;
padding: 10 px;
float: left;
font-family: Arial, Helvetica, sans-serif;
font-size: 9pt;
text-align: left;
color: black;
}

div#main2{
background-position: center;
background-color: white;
width: 317px;
height: 450px;
margin: 0px;
padding: 10 px;
float: right;
border-bottom: 0px;
border-left: 1px solid #9E9E9E;
border-right: 0px;
border-top: 0px;
font-family: Arial, Helvetica, sans-serif;
font-size: 9pt;
text-align: left;
color: black;
}

div#main1col{
background-position: center;
background-color: white;
width: 625px;
height: 289px;
margin: 0px;
padding: 10 px;
border: 0px;
font-family: Arial, Helvetica, sans-serif;
font-size: 9pt;
font-weight: normal;
text-align: left;
color: black;
}

div#main1col td, div#mainl td, div#main2 td{
font-family: Arial, Helvetica, sans-serif;
font-size: 9pt;
font-weight: normal;
text-align: left;
color: black;
}

div#main1col a, div#main1col a:hover, div#main1col a:active, div#main1col a:visited {
font-family: Arial, Helvetica, sans-serif;
font-size: 9pt;
font-weight: normal;
text-align: left;
color: #8B0000;
text-decoration: underline;
}

div#mainl a, div#mainl a:visited, div#mainl a:hover, div#mainl a:active {
font-family: Arial, Helvetica, sans-serif;
font-size: 9pt;
font-weight: normal;
text-align: left;
color: #8B0000;
text-decoration: underline;
}


div#main2 a, div#main2 a:visited, div#main2 a:hover, div#main2 a:active{
font-family: Arial, Helvetica, sans-serif;
font-size: 9pt;
font-weight: normal;
text-align: left;
color: #8B0000;
text-decoration: underline;
}

.container { position: relative; left: 1px; top: 1px;}

.text {position: absolute; left: 5px; top: 0px;}


.container a, .container a:visited, .container hover, .container a:active {color: #666; text-decoration: none;}
.text a, .text a:visited, .text hover, .text a:active{color: white; text-decoration: none;}