Space between Header and Content Boxes

My site

At the bottom of the Header to the top of the boxes, there is a space. I was lookin at the margin settings and padding settings, but I was unsuccessful.

How Do I reduce the space?

Here's my stylesheet:
/**

• Main CSS Stylesheet
• @package templateSystem
• @copyright Copyright 2003-2006 Zen Cart Development Team
• @copyright Portions Copyright 2003 osCommerce
• @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
• @version $Id: stylesheet.css 4387 2006-09-04 13:54:28Z drbyte $
  */

body { color: #999; font-size: 11px; font-family: arial, verdana, arial, helvetica, sans-serif; background-color: #666666; margin: 0}

a img {border: none; }

a:link, #navEZPagesTOC ul li a {
color: #999999;
text-decoration: none;
}

a:visited { color: #999; text-decoration: none }

a:hover, #navEZPagesTOC ul li a:hover, #navMain ul li a:hover, #navSupp ul li a:hover, #navCatTabs ul li a:hover { color: #ccc }

a:active { color: #333 }

h1 { color: #666666; font-size: 16px; font-weight: bold }

h2 { font-size: 16px; font-weight: bold }

h3 { font-size: 16px; font-weight: bold }

h4, h5, h6, LABEL, h4.optionName, LEGEND, ADDRESS, .sideBoxContent, .larger { font-size: 13px; font-weight: bold }

.biggerText { font-size: 1.2em; font-weight: bold }

h1, h2, h3, h4, h5, h6 {
margin: 0.3em 0;
}

/* Might uncomment either or both of these if having problems with IE peekaboo bug:
h1, h2, h3, h4, h5, h6, p {
position: relative;
}
*html .centerColumn {
height: 1%;
}
*/

CODE {
font-family: arial, verdana, helvetica, sans-serif;
font-size: 1em;
}

FORM, SELECT, INPUT {
display: inline;
font-size: 1em;
margin: 0.1em;
}

TEXTAREA {
float: left;
margin: auto;
display: block;
width: 95%;
}

input:focus, select:focus, textarea:focus {
background: #E4FEF5;
}

FIELDSET {
padding: 0.5em;
margin: 0.5em 0em;
border: 1px solid #cccccc;
}

LEGEND {
font-weight: bold;
padding: 0.3em;
}

LABEL, h4.optionName {
line-height: 1.5em;
padding: 0.2em;
}

LABEL.checkboxLabel, LABEL.radioButtonLabel {
margin: 0.5em 0.3em;
}

#logo, .centerBoxContents, .specialsListBoxContents, .categoryListBoxContents, .centerBoxContentsAlsoPurch, .attribImg {
float: left;
}

LABEL.inputLabel {
width: 9em;
float: left;
}

LABEL.inputLabelPayment {
width: 14em;
float: left;
padding-left: 2.5em;
}

LABEL.selectLabel, LABEL.switchedLabel, LABEL.uploadsLabel {
width: 11em;
float: left;
}

#checkoutPayment LABEL.radioButtonLabel {
font-weight: bold;
}

P, ADDRESS {
padding: 0.5em;
}

ADDRESS {
font-style: normal;
}

.clearBoth {
clear: both;
}

HR {
height: 1px;
margin-top: 0.5em;
border: none;
border-bottom: 1px solid #9a9a9a;
}

/warnings, errors, messages/
.messageStackWarning, .messageStackError, .messageStackSuccess, .messageStackCaution {
line-height: 1.8em;
padding: 0.2em;
border: 1px solid #9a9a9a;
}

.messageStackWarning, .messageStackError {
background-color: #ff0000;
color: #ffffff;
}

.messageStackSuccess {
background-color: #99FF99;
color: #000000;
}

.messageStackCaution {
background-color: #FFFF66;
color: #000000;
}

/wrappers - page or section containers/
#mainWrapper {
background-color: #ffffff;
text-align: left;
width: 800px;
vertical-align: top;
border: 0px solid #cccccc;
}

#headerWrapper, #contentMainWrapper, #logoWrapper, #cartBoxListWrapper, #ezPageBoxList, #cartBoxListWrapper ul, #ezPageBoxList ul, #mainWrapper, #popupAdditionalImage, #popupImage {
margin: 0em;
padding-bottom: 0em;
}

#logoWrapper{
background-image: url(../images/header_bg.jpg);
background-repeat: repeat-x;
background-color: #ffffff;
height:75px;
}

#navColumnOneWrapper, #navColumnTwoWrapper, #mainWrapper {
margin: auto;
}
#navColumnOneWrapper, #navColumnTwoWrapper {
margin-left: 0.5em;
margin-right: 0.5em;
}

#tagline {
color:#999999;
font-size: 2em;
text-align : center;
vertical-align: middle;
}

#sendSpendWrapper {
border: 1px solid #cacaca;
float: right;
margin: 0em 0em 1em 1em;
}

.floatingBox, #accountLinksWrapper, #sendSpendWrapper, #checkoutShipto, #checkoutBillto, #navEZPagesTOCWrapper {
margin: 0;
width: 47%;
}

.wrapperAttribsOptions {
margin: 0.3em 0em;
}

/navigation/

.navSplitPagesResult {}
.navSplitPagesLinks {}

.navNextPrevCounter {
margin: 0em;
font-size: 0.9em;
}
.navNextPrevList {
display: inline;
white-space: nowrap;
margin: 0;
padding: 0.5em 0em;
list-style-type: none;
}

#navMainWrapper, #navSuppWrapper {
margin: 0em;
background-color: #666666;
padding: 0.0em 0.2em;
font-weight: bold;
color: #999999;
height: 1%;
}

#navCatTabsWrapper {
background-color: #666666;
color: #9a9a9a;
background-image:none;
}

#navMain ul, #navSupp ul, #navCatTabs ul {
margin: 0;
padding: 0.5em 0em;
list-style-type: none;
text-align: center;
line-height: 1.5em;
}

#navMain ul li, #navSupp ul li, #navCatTabs ul li {
display: inline;
}

#navMain ul li a, #navSupp ul li a, #navCatTabs ul li a { color: #999; text-decoration: none; white-space: nowrap; margin: 0; padding: 0 0.8em }

#navCatTabs ul li a {
color: #ffffff;
}

#navEZPagesTOCWrapper {
font-weight: bold;
float: right;
height: 1%;
border: 1px solid #9a9a9a;
}

#navEZPagesTOC ul {
margin: 0;
padding: 0.5em 0em;
list-style-type: none;
line-height: 1.5em;
}

#navEZPagesTOC ul li {
white-space: nowrap;
}

#navEZPagesTOC ul li a {
padding: 0em 0.5em;
margin: 0;
}

#navMainSearch, #navCategoryIcon, .buttonRow, #indexProductListCatDescription {
margin: 0.5em;
}

#navBreadCrumb {
padding: 0.5em 0.5em;
margin: 1px;
background-color: #ffffff;
font-size: 1.2em;
font-weight: bold;
margin: 0em;
}

#navEZPagesTop {
background-color: #333333;
background-image: url(../images/tile_back.gif);
font-size: 1.4em;
font-weight: bold;
margin: 0em;
padding: 0.5em;
}

#navColumnOne, #navColumnTwo {
background-color: transparent;
}

/The main content classes/
#contentColumnMain, #navColumnOne, #navColumnTwo, .centerBoxContents, .specialsListBoxContents, .categoryListBoxContents, .additionalImages, .centerBoxContentsSpecials, .centerBoxContentsAlsoPurch, .centerBoxContentsFeatured, .centerBoxContentsNew, .alert {
vertical-align: top;
}

/.content,/ #productDescription, .shippingEstimatorWrapper {
/font-size: 1.2em;/
padding: 0.5em;
}

.alert {
color: #FF0000;
margin-left: 0.5em;
}
.advisory {}
.important {
font-weight: bold;
}
.notice {}
.rating{}
.gvBal {
float: right;
}
.centerColumn, #bannerOne, #bannerTwo, #bannerThree, #bannerFour, #bannerFive, #bannerSix {
border: 1px solid #cccccc;
padding: 0.8em;
margin-bottom: 0.5em;
}

.smallText, #siteinfoLegal, #siteinfoCredits, #siteinfoStatus, #siteinfoIP {
font-size: 0.9em;
}

/Shopping Cart Display/
#cartAdd {
float: right;
background-color: #ffffff;
font-weight: bold;
text-align: center;
margin: 1em;
border: 1px solid #cccccc;
padding: 1em;
}

.tableHeading TH {
border-bottom: 1px solid #9a9a9a;
}

.tableHeading, #cartSubTotal {
background-color: #e9e9e9;
}

#cartSubTotal {
border-top: 1px solid #cccccc;
font-weight: bold;
text-align: right;
line-height: 2.2em;
padding-right: 2.5em;
}

.tableRow, .tableHeading, #cartSubTotal {
height: 2.2em;
}

.cartProductDisplay, .cartUnitDisplay, .cartTotalDisplay, .cartRemoveItemDisplay, .cartQuantityUpdate, .cartQuantity, #cartInstructionsDisplay, .cartTotalsDisplay {
padding: 0.5em 0em;
}

.cartUnitDisplay, .cartTotalDisplay {
text-align: right;
padding-right: 0.2em;
}

#scUpdateQuantity {
width: 2em;
}

.cartQuantity {
width: 4.7em;
}

.cartNewItem {
color: #33CC33;
position: relative; /do not remove-fixes stupid IEbug/
}

.cartOldItem {
color: #660099;
position: relative; /do not remove-fixes stupid IEbug/
}

.cartBoxTotal {
text-align: right;
font-weight: bold;
}

.cartRemoveItemDisplay {
width: 3.5em;
}

.cartAttribsList {
margin-left: 1em;
}

#mediaManager {
width: 50%;
margin: 0.2em;
padding: 0.5em;
background-color: #E4FEf5;
border: 1px solid #003D00;
}

.normalprice, .productSpecialPriceSale {
text-decoration: line-through;
}

.productSpecialPrice, .productSalePrice, .productSpecialPriceSale, .productPriceDiscount {
color: #ff0000;
}

.orderHistList {
margin: 1em;
padding: 0.2em 0em;
list-style-type: none;
}

#cartBoxListWrapper ul, #ezPageBoxList ul {
list-style-type: none;
}

#cartBoxListWrapper li, #ezPageBoxList li, .cartBoxTotal {
margin: 0;
padding: 0.2em 0em;
}

#cartBoxEmpty, #cartBoxVoucherBalance {
font-weight: bold;
}

.totalBox {
width: 5.5em;
text-align: right;
padding: 0.2em;
}

.lineTitle, .amount {
text-align: right;
padding: 0.2em;
}

.amount {
width: 5.5em;
}

/Image Display/
#productMainImage, #reviewsInfoDefaultProductImage, #productReviewsDefaultProductImage, #reviewWriteMainImage {
margin: 0em 1em 1em 0em ;
}

.categoryIcon {}

#cartImage {
margin: 0.5em 1em;
}

/Attributes/
.attribImg {
width: 20%;
margin: 0.3em 0em;
}

.attributesComments {}

/list box contents/
.centerBoxContents, .specialsListBoxContents, .categoryListBoxContents, .additionalImages, .centerBoxContentsSpecials, .centerBoxContentsAlsoPurch, .centerBoxContentsFeatured, .centerBoxContentsNew {
margin: 1em 0em;
}

.centerBoxWrapper {
border: 1px solid #9a9a9a;
height: 1%;
margin: 1.1em 0;
}

h2.centerBoxHeading {
font-size: 1.3em;
color: #666666;
}

/sideboxes/
.columnLeft {
background-color: #666666;
}

h3.leftBoxHeading, h3.leftBoxHeading a,
h3.rightBoxHeading, h3.rightBoxHeading a {
font-size: 1em;
color: #ffffff;
}
#manufacturersHeading, #currenciesHeading, #musicgenresHeading, #recordcompaniesHeading, #searchHeading, #search-headerHeading {
font-size: 0.1em;
color: #ffffff;
}

.leftBoxHeading, .centerBoxHeading, .rightBoxHeading {
margin: 0em;
background-color: #666666;
padding: 0.0em 0.0em;
}

.leftBoxContainer, .rightBoxContainer {
margin: 0em;
border: 1px solid #cccccc;
border-bottom: 1px solid #cccccc;
margin-top: 0.0em;
margin-bottom: 1.5em;
}

.sideBoxContent {
background-color: #ffffff;
padding: 0.4em;
}

h3.leftBoxHeading a:hover, h3.rightBoxHeading a:hover {
color: #FFFF33;
text-decoration: none;
}

.rightBoxHeading a:visited, .leftBoxHeading a:visited, .centerBoxHeading a:visited {
color: #FFFFFF;
}

.centeredContent, TH, #cartEmptyText, #cartBoxGVButton, #cartBoxEmpty, #cartBoxVoucherBalance, #navCatTabsWrapper, #navEZPageNextPrev, #bannerOne, #bannerTwo, #bannerThree, #bannerFour, #bannerFive, #bannerSix, #siteinfoLegal, #siteinfoCredits, #siteinfoStatus, #siteinfoIP, .center, .cartRemoveItemDisplay, .cartQuantityUpdate, .cartQuantity, .cartTotalsDisplay, #cartBoxGVBalance, .leftBoxHeading, .centerBoxHeading,.rightBoxHeading, .productListing-data, .accountQuantityDisplay, .ratingRow, LABEL#textAreaReviews, #productMainImage, #reviewsInfoDefaultProductImage, #productReviewsDefaultProductImage, #reviewWriteMainImage, .centerBoxContents, .specialsListBoxContents, .categoryListBoxContents, .additionalImages, .centerBoxContentsSpecials, .centerBoxContentsAlsoPurch, .centerBoxContentsFeatured, .centerBoxContentsNew, .gvBal, .attribImg {
text-align: center;
}

#bestsellers .wrapper {
margin: 0em 0em 0em 1.5em;
}

#bestsellers ol {
padding: 0;
margin-left: 1.1em;
}

#bestsellers li {
padding: 0;
margin: 0.3em 0em 0.3em 0em;
}

#bannerboxHeading { background-color: #666 }

#upProductsHeading {
text-align: left;
}

#upDateHeading {
text-align: right;
}

/* categories box parent and child categories /
A.category-top, A.category-top:visited {
color: #999999;
text-decoration: none;
}
A.category-links, A.category-links:visited { color: #999999; text-decoration: none }
A.category-subs, A.category-products, A.category-subs:visited, A.category-products:visited {
color: #999999;
text-decoration: none;
}
SPAN.category-subs-parent {
font-weight: bold;
}
SPAN.category-subs-selected {
font-weight: bold;
}
/ end categories box links */

/misc/
.back {
float: left;
}

.forward {
float: right;
}

.bold {
font-weight: bold;
}

.rowOdd {
background-color: #E8E8E8;
height: 1.5em;
vertical-align: top;
}

.rowEven {
background-color: #F0F0F0;
height: 1.5em;
vertical-align: top;
}

CAPTION {
/display: none;/
}

#myAccountGen li, #myAccountNotify li {
margin: 0;
}

.accountTotalDisplay, .accountTaxDisplay {
width: 20%;
text-align: right;
/vertical-align: top/
}

.accountQuantityDisplay {
width: 10%;
vertical-align: top
}

TR.tableHeading {
background-color: #666666;
height: 2em;
}

.productListing-rowheading {
background-color: #999999;
background-image: url(../images/tile_back.gif);
height: 2em;
color: #FFFFFF;
}

#siteMapList {
width: 90%;
float: right;
}

.ratingRow {
margin: 1em 0em 1.5em 0em;
}

LABEL#textAreaReviews {
font-weight: normal;
margin: 1em 0em;
}

#popupShippingEstimator, #popupSearchHelp, #popupAdditionalImage, #popupImage, #popupCVVHelp, #popupCouponHelp, #popupAtrribsQuantityPricesHelp, #infoShoppingCart {
background-color: #ffffff;
}

#siteinfoLegal, .legalCopyright {
text-align: center;
padding: 1em;
background-color: #666666; /* change it to ur desired color */
font-size: 10px;
}

.itemTitle {
font-size: 16px;
font-weight: bold;
font-color: #666666;
}

Try separating and adding a height statement to your #headerWrapper and adjust the height similar to this

#headerWrapper {
	margin: 0em;
	padding-bottom: 0em;
        height: 130px;
	}

#contentMainWrapper, #logoWrapper, #cartBoxListWrapper, #ezPageBoxList, #cartBoxListWrapper ul, #ezPageBoxList ul, #mainWrapper, #popupAdditionalImage, #popupImage {
	margin: 0em;
	padding-bottom: 0em;
	}

As well, in Firefox... your rounded corners up top are ruined from unused, but active h1 tags in your tagline wrapper. In your custom tpl_header.php, find;

    <div id="taglineWrapper">
      <div id="tagline"><h1></h1></div>
    </div>

Either omit the entire code above or at the very least, omit the h1 open and close tags(in red).

Gutchya...Thanks for the help

hmmmm.... I tried what you said above, but it didn't seem to work. Also On Mac Browser, theres is a big gap from the top to the header....hmmm