Hello All,

I meet two big problems when I modify my store (http://heidimart.com).

1. content wrap size is very strange except mainpage, it's only around 3/5 of full size. For example: http://heidimart.com//index.php?main...dex&cPath=2_10

2. My web looks different in different internet navigators (for example: IE and firefox), different internet navigator versions, even in different computers.

my current stylesheet code is
Code:
/**
 
body {
	margin: 0;
	font-family: verdana, arial, helvetica, sans-serif;
	font-size: 0.8em;
	color: #795252;
	background-color: #393939;
	}

/* OUTERMOST WRAPPER */
#mainWrapper {
	text-align: left;
	width: 760px;
	vertical-align: top;
	background-color: #797979;

	margin: auto;
	}

#contentMainWrapper {
	background-color: #FFFFFF;
	color: #795252;
	}

/* NAV BAR */
#navMainWrapper {
	margin: 0em;
	background-color: #393939;
	font-weight: bold;
	color: #ffffff;
	height: 1%;
	width: 100%;
	}

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

#navMain ul li {
	display: inline;
	}

#navMain ul li a {
	text-decoration: none;
	padding: 0em 0.5em;
	margin: 0;
	color: #ffffff;
	white-space: nowrap;
	}

#navMainSearch {
	margin: 0.5em;
	}

/* HEADER */
#headerWrapper {
	margin: 0em;
	padding: 0em;
	vertical-align: top;
	}

/*  LOGO  */
#logoWrapper {
	background-color: #797979;
	text-align: center;
	margin: 0px;
	padding: 0px;
	border: 0px;
 height: 82px;	}

#logo {
	margin: 0px;
	padding: 0px;
	border: 0px;
	float: left; position:relative; left: 15px;}

/* TAGLINE */
#tagline {
	color:#795252;
	font-size: 1.5em;
	text-align : center;
	vertical-align: top; position:relative; top: 22px; 	}

.tagline {
	padding: 0px;
	margin: 0px;
	}

.taglineWrapper {
	padding: 0px;
	margin: 0px;	
	}

/* CATEGORY TAB SPACE  */
#navCatTabsWrapper {
	margin: 0em;
	background-color: #393939;
	font-weight: bold;
	color: #ffffff;
	height: 1%;
	width: 100%;
	text-align: center;
	}

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

#navCatTabs ul li {
	display: inline;
	}

#navCatTabs ul li a {
	text-decoration: none;
	padding: 0em 0.5em;
	margin: 0;
	color: #ffffff;
	white-space: nowrap;
	}

/* COLUMNS LEFT/ONE RIGHT/TWO  */
#navColumnOneWrapper, #navColumnTwoWrapper {
	margin: auto;
	} 

#navColumnOne {
	vertical-align: top;
	background-color: #393939;
	}

#navColumnTwo {
	vertical-align: top;
	background-color: #393939;
		}

/* SIDE BOXES */
.sideBoxContent {
	color: #E4F8FF;
	padding: 5px;
	margin-bottom: 3em;
	border: 0px;
	font-size: 1.0em;
	}

.leftBoxContent, .rightBoxContent {
	background-color: #ffffff;
	margin-bottom: 1em;
	}


.leftBoxHeading, .rightBoxHeading {
	font-size: 1.1em;
	font-weight: bold;
	text-align: center;
	margin-top: 1em;
	padding: 0px;
	color: #FFFFFF;
	background-color: #797979;
	}

.leftBoxContainer, .rightBoxContainer {
	padding: 0px;
	margin: 0px;
	border: 0px;
	}

h3.leftBoxHeading, h3.leftBoxHeading a:link {
	font-size: 1.1em;
	font-weight: bold;
	color: #ffffff;
	}

h3.leftBoxHeading a:hover, h3.rightBoxHeading a:hover {
	color: #FFC7AD;
	text-decoration: none;
	} 

/* NEXT PREVIOUS */
.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;
	}

.navNextPrevWrapper {
	text-align: center;
	}

/* BREADCRUMB */
#navBreadCrumb {
	
	font-size: 0.95em;
	font-weight: bold;
	margin: 0em;
	padding: 0.5em;
	}

/*  NAV SUPP   */
#navSuppWrapper {
	margin: 0em;
	background-color: #393939;
	font-weight: bold;
	color: #ffffff;
	height: 1%;
	width: 100%;
	}

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

#navSupp ul li {
	display: inline;
	}

#navSupp ul li a {
	text-decoration: none;
	padding: 0em 0.5em;
	margin: 0;
	color: #ffffff;
	white-space: nowrap;
	}

/* FOOTER  */
.legalCopyright {
	border-top: 1px solid #795252;
	}

#siteinfoCredits, #siteinfoStatus, #siteinfoIP {
	font-size: 0.9em;
	text-align: center;
	}

#siteinfoLegal {
	text-align: center;
	}

/*   LINKS   */
a:link, #navEZPagesTOC ul li a, #reviewsHeading a:link, #featuredHeading a:link, #whatsnewHeading a:link{
	font-size: 1em;
	color: #FFFFFF;
	text-decoration: none;
	font-weight: bold;
	}
 
a:visited, #navEZPagesTOC a:visited, #reviewsHeading a:visited , #featuredHeading a:visited, .whatsnewHeading a:visited {
	font-size: 1em;
	color: #FFFFFF;
	text-decoration: none;
	font-weight: bold;
	}

a:hover, #navEZPagesTOC ul li a:hover, #navMain ul li a:hover, #navSupp ul li a:hover, #navCatTabs ul li a:hover , #reviewsHeading a:hover, #featuredHeading a:hover, #whatsnewHeading a:hover {
	font-size: 1em;
	color: #FFC7AD;
	}

a:active {
	font-size: 1em;
	color: #0000FF;
	}

a img {
	border: none;
	} 

.centerColumn a:link , #navBreadCrumb a:link {
	font-weight: bold;
	text-decoration: none;
	color: #597EA3;
	}

.centerColumn a:visited , #navBreadCrumb a:visited  {
	color: #393939;
	font-weight: bold;
	text-decoration: none;
	}
.centerColumn a:active , #navBreadCrumb a:active {
	color: #393939;
	font-weight: bold;
	text-decoration: none;
	}

.centerColumn a:hover , #navBreadCrumb a:hover {
	color: #797979;
	font-weight: bold;
	text-decoration: none;
	}

#navBreadCrumb a:link {
	font-weight: bold;
	text-decoration: none;
	color: #597EA3;
	}

#navBreadCrumb a:visited  {
	color: #393939;
	}

#navBreadCrumb a:active {
	color: #393939;
	}

#navBreadCrumb a:hover {
	color: #797979;
	}

.piclink {
	text-align: center;
	float: left;
	}

.piclink a:link, .new a:active , .new a:visited {
	color: #393939;
	font-weight: bold;
	text-decoration: none
	}

.piclink a:hover {
	color:#797979
	}

.categoryIcon a:link {
	text-decoration: none;
	}

/* CENTER COLUMN */
#contentColumnMain {
	vertical-align: top;
	}

.centerBoxHeading {
	margin: 0em;
	background-color: #797979;
	color: #ffffff;
	padding: 0.5em 0.2em;
	text-align: center;
	}

.centerBoxWrapper
	{
	border-right: 1px solid #797979;
	border-left: 1px solid #797979;
	margin-bottom: 10px;
	text-align: center;
	}

.centerBoxContents {
	vertical-align: top;
	}

.centerColumn {
	padding: 1.2em;
	}

/* BESTSELLERS BOX */
#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;
	}

/* EZ PAGES */#navEZPagesTop a {float: right; padding-right: 5em; color: yellow;}. 
#ezPageBoxList ul {
	margin: 0em;
	padding: 0em;
	vertical-align: top;
	}

#ezPageBoxList {
	margin: 0em;
	padding: 0em;
	vertical-align: top;
	}

#navEZPagesTOCWrapper {
	margin: 0;
	width: 47%;
	}

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

#ezPageBoxList li {
	margin: 0;
	padding: 0.2em 0em;
	}

#navEZPageNextPrev {
	text-align: center;
	} /* OTHER NAMED BOXES */
.centerBoxContents, .centerBoxContentsAlsoPurch, .centerBoxContentNew, .centerBoxContentsSpecials, .centerBoxContentsFeatured, .centerBoxContentsNew, .categoryListBoxContents, .specialsListBoxContents {
	vertical-align: top;
	float: left;
	margin: 1em 0em;
	text-align: center;
	}

.additionalImages {
	margin: 1em 0em;
	}

/* PRODUCT LISTING */
.productListing-data {
	text-align: center;
	padding-bottom: 10px;
	padding-top: 10px;
	}

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

.productListing-even {
	background-color: #F0F0F0;
	height: 1.5em;
	vertical-align: top;
	}
#indexProductListCatDescription {
	margin: 0.5em;
	}

.listingDescription {
	text-align: left;
	}

/* WARNINGS ERRORS MESSAGES */
.messageStackWarning, .messageStackError, .messageStackSuccess, .messageStackCaution {
	line-height: 1.8em;
	padding: 0.2em;
	border: 1px solid #795252;
	}

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

.messageStackSuccess {
	background-color: #99FF99;
	color: #795252;
	}

.messageStackCaution {
	background-color: #FFFF66;
	color: #795252;
	}

/* BASIC TEXT AND HEADINGS  */
h1 {
	font-size: 1.5em;
	margin: 0.3em;
	}

#productName {
	}

#productPrices {
	}

h2 {
	font-size: 1.4em;
	margin: 0.3em;
	}

h3 {
	font-size: 1.4em;
	color: #393939;
	margin: 0.3em;
	}

h4, h5, h6, LABEL, h4.optionName, LEGEND, ADDRESS, .larger{
	font-size: 1.1em;
	}

.biggerText {
	font-size: 1.2em;
	}

.smallText {
	font-size: 0.9em;
	}

/* SHOPPING CART DISPLAY */
.tableHeading TH {
	border-bottom: 1px solid #cccccc;
	}

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

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

#cartAdd {
	float: right;
	text-align: center;
	margin: 1em;
	border: 1px solid #795252;
	padding: 1em;
	}

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

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

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

.orderHistList {
	margin: 1em;
	padding: 0.2em 0em;
	} 

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

#cartBoxListWrapper 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;
	}

#reviewsInfoDefaultProductImage, #productReviewsDefaultProductImage, #reviewWriteMainImage {
	margin: 0em 1em 1em 0em ;
	}

#productMainImage {
	float: left;
	margin: 10px;
	} #productAdditionalImages {padding-top: 90px;}  

.categoryIcon {
	vertical-align: bottom;
	text-align: center;
	float: left;
	}

#cartImage {
	margin: 0.5em 1em;
	}

.attributesComments {
	}

/*  EVERYTHING ELSE */
#cartBoxListWrapper,  #cartBoxListWrapper ul, #popupAdditionalImage, #popupImage {
	margin: 0em;
	padding: 0em;
	vertical-align: top;
	}

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

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

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

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

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

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

input:focus, select:focus, textarea:focus {
	background: #F0F8FF;
	}

FIELDSET {
	padding: 0.5em;
	margin: 0.5em 0em;
	border: 1px solid #393939;
	}

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;
	}

.attribImg {
	float: right;
	width: 20%;
	margin: 0.3em 0em;
	text-align: center;
	}

LABEL.inputLabel {
	width: 11em;
	float: left;
	}

LABEL.inputLabelPayment {
	width: 15em;
	float: left;
	}

LABEL.selectLabel, LABEL.switchedLabel, LABEL.uploadsLabel  {
	width: 12em;
	float: left;
	}

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 #393939;
	}

.additionalImages, .alert {
	vertical-align: top;
	}

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

#productDescription {
	float: left;
	}

#productDateAdded , #productInfoLink , #productAdditionalImages {
	text-align: center;
	}

#productDateAvailable {
	font-weight: bold;
	color: #CC0099;
	text-align: center;
	}

.productGeneral {
	}

.alert {
	color: #FF0000;
	margin-left: 0.5em;
	}
.advisory {}
.important {
	font-weight: bold;
	}
.notice {}
.rating{}
.gvBal {
	float: right;
	}
#bannerOne, #bannerTwo,  #bannerThree,  #bannerFour,  #bannerFive,  #bannerSix {
	text-align: center;
	padding: 0.8em;
	}

#bannerboxHeading {
	background-color: #9B7969;
	}

.centeredContent, TH, #cartEmptyText, #cartBoxGVButton, #cartBoxEmpty, #cartBoxVoucherBalance, .center, 
 .cartRemoveItemDisplay, .cartQuantityUpdate, .cartQuantity, .cartTotalsDisplay, #cartBoxGVBalance, .accountQuantityDisplay, .ratingRow, LABEL#textAreaReviews, #productMainImage, #reviewsInfoDefaultProductImage, #productReviewsDefaultProductImage, #reviewWriteMainImage, .additionalImages, .gvBal  {
	text-align: center;
	}

#upProductsHeading {
	text-align: left;
	}

#upDateHeading {
	text-align: right;
	}

#reviewsContent {
	color: #A6F4CD;
	font-style: italic;
	}

.category-subs-selected {
	font-style: italic;
	color: #FFC7AD;
	}

.back {
	float: left;
	vertical-align: top; 
	}

.forward {
	float: right;
	}

.bold {
	font-weight: bold;
	}

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: #cacaca;
	height: 2em;
	}

#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;
	}

.wrapperAttribsOptions {
	vertical-align: top;
	margin: 5px;
	float: none;	
	}

#attribTable {
	width: 100%;
	margin-bottom: 15px;
	background-color:#F0F0F0;
	}

th {
	font-size: 1.2em;
	font-weight: bold;
	text-align: left;
	color: #795252;
	}



.newsInfo {
  text-align: left;
  font-style: normal;
}

#newsscrollbox {
  font-size: 0.8em;
}

.newsContent {
font-size: 1.2em;
}

#newsArchivTitleHeading {
	text-align: left;
	
}

#newsArchivDateHeading {
	text-align: right;
	}
Is there anybody who can give me a kind help to fix them?

Thanks a lot.