Update panel et Internet Explorer

Hello,

voici le code html de mon user control :

Code:

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<asp:ScriptManager ID="sm" runat="server" EnableHistory="true" OnNavigate="sm_Navigate" EnableSecureHistoryState="false" />
 
<asp:UpdatePanel ID="upMainContent" runat="server">
	<ContentTemplate>
	<asp:Panel runat="server" ID="maincontent">
	<div id="container-in">
		<div id="content">
			<asp:Label runat="server" ID="lblNoProducts" Visible="false" Text="No technical sheets found"></asp:Label>
			<asp:Label runat="server" ID="lblMessage" Visible="false" ForeColor="Red"></asp:Label>
						<asp:Panel runat="server" ID="ListProduct">	
				<asp:Repeater ID="rptTechnicalSheets" runat="server">
					<HeaderTemplate>
						<ul id="productsList" class="active">
					</HeaderTemplate>
					<ItemTemplate>
						<li>
							<div class="thumb">
								<span></span>
								<img alt="" src='<%# DataBinder.Eval(Container.DataItem, "Thumbnail") %>' />
								<%--<a href='<%= baseurl + "?id=" %><%# DataBinder.Eval(Container.DataItem, "Id")%>' title='<%# DataBinder.Eval(Container.DataItem, "Title") %>'><%# DataBinder.Eval(Container.DataItem, "Title") %></a>--%>
								<asp:LinkButton runat="server" ID="lnkDetailTS" OnClick="lnkDetailTS_Click" OnClientClick="$('#maincontent').removeClass('container1');" ToolTip='<%# DataBinder.Eval(Container.DataItem, "Title") %>' Text='<%# DataBinder.Eval(Container.DataItem, "Title") %>' CommandArgument='<%# DataBinder.Eval(Container.DataItem, "Id")%>'></asp:LinkButton>
								<%--<a href='<%= baseurl + "?id=" %><%# DataBinder.Eval(Container.DataItem, "Id")%>' title='<%# DataBinder.Eval(Container.DataItem, "Title") %>'><%# DataBinder.Eval(Container.DataItem, "Title") %></a>--%>
							</div>
						</li>
					</ItemTemplate>
					<FooterTemplate>
						</ul>
					</FooterTemplate>
				</asp:Repeater>
 
				<%--<asp:Literal runat="server" ID="litPager"></asp:Literal>--%>
				<asp:Panel ID="pagination" runat="server">
					<p class="nav2">
						<asp:LinkButton ID="btnPrevious" CausesValidation="false" Visible="false" CssClass="prev" OnClick="btnPagination_Click" runat="server">
						</asp:LinkButton>
						<asp:LinkButton ID="btnNext" CausesValidation="false" Visible="false" CssClass="next" OnClick="btnPagination_Click" runat="server">
						</asp:LinkButton>
					</p>
				</asp:Panel>
 
			</asp:Panel>
 
 
		</div>
		<asp:Panel Id="side2" runat="server" Visible="false" ClientIDMode="Static" >
			<div id="productPhoto">
				<div class="thumb">
					<span></span>
					<img alt="" src="<%=ProductImage %>" /></div>
					<asp:Panel runat="server" ID="pnlActions">
						<ul class="actions">
							<asp:Repeater runat="server" ID="rptActions">
								<ItemTemplate>
									<li class="<%# DataBinder.Eval(Container.DataItem, "CssClass") %>">
										<a target="<%# DataBinder.Eval(Container.DataItem, "Target") %>" href="<%# DataBinder.Eval(Container.DataItem, "Url") %>" title="<%# DataBinder.Eval(Container.DataItem, "Title") %>"><%# DataBinder.Eval(Container.DataItem, "Title") %></a>
									</li>
								</ItemTemplate>
							</asp:Repeater>
							<li class="order" runat="server" id="liOrder" visible="false">
								<asp:LinkButton runat="server" ID="lnkOrderSample" OnClick="lnkOrderSample_Click"></asp:LinkButton>
								<asp:Panel runat="server" ID="pnlContactUs" Visible="false">
									<p>
										For more information, please <a href="<%= contacturl %>" title="<%= Telerik.Sitefinity.Localization.Res.Get<SitefinityWebApp.Resources.AptarLabels>().ContactUs.ToLower() %>"><%= Telerik.Sitefinity.Localization.Res.Get<SitefinityWebApp.Resources.AptarLabels>().ContactUs.ToLower() %></a>
									</p>
								</asp:Panel>
							</li>
						</ul>
					</asp:Panel>
			</div>
		</asp:Panel>
	</div>
	<div id="side1">
		<div id="finder">
			<p class="head">
				Product Finder</p>
			<p>
				Please select one to many criteria</p>
				<%--<asp:UpdatePanel runat="server" UpdateMode="Conditional">
				<ContentTemplate>--%>
				<!-- Beauty -->
				<asp:Panel runat="server" ID="PanelBeauty" Visible="false">
					<%--<telerik:RadComboBox runat="server" ID="ddlRegions" Width="210px" EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins="false"
						MarkFirstMatch="true" EnableLoadOnDemand="true" CssClass="custom-select select1"
						HighlightTemplatedItems="true" AppendDataBoundItems="true" OnSelectedIndexChanged="ddlRegions_SelectedIndexChanged"
						AutoPostBack="true" CausesValidation="false" DataTextField="Title" DataValueField="Id">
					</telerik:RadComboBox>
					<telerik:RadComboBox runat="server" ID="ddlCategories" Width="210px" EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins="false"
						MarkFirstMatch="true" EnableLoadOnDemand="true" CssClass="custom-select select1"
						HighlightTemplatedItems="true" AppendDataBoundItems="true" OnSelectedIndexChanged="ddlCategories_SelectedIndexChanged"
						AutoPostBack="true" CausesValidation="false" DataTextField="Title" DataValueField="Id">
					</telerik:RadComboBox>
					<telerik:RadComboBox runat="server" ID="ddlMarketingSheets" Width="210px" EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins="false" OnSelectedIndexChanged="ddlMarketingSheets_SelectedIndexChanged"
						MarkFirstMatch="true" EnableLoadOnDemand="true" CssClass="custom-select select1"
						HighlightTemplatedItems="true" AppendDataBoundItems="true"
						AutoPostBack="true" CausesValidation="false" DataTextField="Title" DataValueField="Id">
					</telerik:RadComboBox>
					<telerik:RadComboBox runat="server" ID="ddlPackageCapacity" Width="210px" EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins="false" OnSelectedIndexChanged="ddlPackageCapacity_SelectedIndexChanged"
						MarkFirstMatch="true" EnableLoadOnDemand="true" CssClass="custom-select select1"
						HighlightTemplatedItems="true" AppendDataBoundItems="true"
						AutoPostBack="true" CausesValidation="false" DataTextField="Title" DataValueField="Id">
					</telerik:RadComboBox>
					<telerik:RadComboBox runat="server" ID="ddlNeckFinishBeauty" Width="210px" EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins="false" OnSelectedIndexChanged="ddlNeckFinishBeauty_SelectedIndexChanged"
						MarkFirstMatch="true" EnableLoadOnDemand="true" CssClass="custom-select select1"
						HighlightTemplatedItems="true" AppendDataBoundItems="true"
						AutoPostBack="true" CausesValidation="false" DataTextField="Title" DataValueField="Id">
					</telerik:RadComboBox>
					<telerik:RadComboBox runat="server" ID="ddlDosagesMinBeauty" Width="210px" EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins="false" OnSelectedIndexChanged="ddlDosagesMinBeauty_SelectedIndexChanged"
						MarkFirstMatch="true" EnableLoadOnDemand="true" CssClass="custom-select select1"
						HighlightTemplatedItems="true" AppendDataBoundItems="true"
						AutoPostBack="true" CausesValidation="false" DataTextField="Title" DataValueField="Id">
					</telerik:RadComboBox>
					<telerik:RadComboBox runat="server" ID="ddlDosagesMaxBeauty" Width="210px" EnableEmbeddedBaseStylesheet="false" EnableEmbeddedSkins="false" OnSelectedIndexChanged="ddlDosagesMaxBeauty_SelectedIndexChanged"
						MarkFirstMatch="true" EnableLoadOnDemand="true" CssClass="custom-select select1"
						HighlightTemplatedItems="true" AppendDataBoundItems="true"
						AutoPostBack="true" CausesValidation="false" DataTextField="Title" DataValueField="Id">
					</telerik:RadComboBox>--%>
					<asp:DropDownList runat="server" ID="ddlRegions" Width="210px" DataTextField="Title" DataValueField="Id" TabIndex="1"
						CssClass="select1" OnSelectedIndexChanged="ddlRegions_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlCategories" Width="210px" DataTextField="Title"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlCategories_SelectedIndexChanged" TabIndex="2"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlMarketingSheets" Width="210px" DataTextField="Title"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlMarketingSheets_SelectedIndexChanged" TabIndex="3"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
						<asp:DropDownList runat="server" ID="ddlPackageCapacity" Width="210px" DataTextField="Title"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlPackageCapacity_SelectedIndexChanged" TabIndex="4"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
						<asp:DropDownList runat="server" ID="ddlNeckFinishBeauty" Width="210px" DataTextField="Title"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlNeckFinishBeauty_SelectedIndexChanged" TabIndex="5"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlDosagesMinBeauty" Width="210px" DataTextField="Title"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlDosagesMinBeauty_SelectedIndexChanged" TabIndex="6"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlDosagesMaxBeauty" Width="210px" DataTextField="Title"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlDosagesMaxBeauty_SelectedIndexChanged" TabIndex="7"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
				</asp:Panel>
				<!-- Personal Care -->
				<asp:Panel runat="server" ID="PanelPersonalCare" Visible="false">
					<asp:DropDownList runat="server" ID="ddlListRegionPersonalCare" Width="210px" DataTextField="Title" DataValueField="Id" TabIndex="1"
						CssClass="custom-select select1" OnSelectedIndexChanged="ddlListRegionPersonalCare_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlcategoryPersonalCare" Width="210px" DataTextField="Title"
						DataValueField="Id" CssClass="custom-select select1" TabIndex="2" OnSelectedIndexChanged="ddlcategoryPersonalCare_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlSubCategoryPersonalCare" Width="210px" DataTextField="Title"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlSubCategoryPersonalCare_SelectedIndexChanged" TabIndex="3"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlApplicationFieldsPersonalCare" Width="210px" DataTextField="Title" TabIndex="4"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlApplicationFieldsPersonalCare_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlNeckPersonalCare" Width="210px" DataTextField="Title"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlNeckPersonalCare_SelectedIndexChanged" TabIndex="5"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlDosageMinPersonalCare" Width="210px" DataTextField="Title"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlDosageMinPersonalCare_SelectedIndexChanged" TabIndex="6"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlDosageMaxPersonalCare" Width="210px" DataTextField="Title" TabIndex="7"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlDosageMaxPersonalCare_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
				</asp:Panel>
				<!--  Home care -->
				<asp:Panel runat="server" ID="PanelHomeCare" Visible="false">
					<asp:DropDownList runat="server" ID="ddlRegionHomeCare" Width="210px" DataTextField="Title" TabIndex="1"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlRegionHomeCare_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlCategoryHomeCare" Width="210px" DataTextField="Title" TabIndex="2"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlCategoryHomeCare_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlSubCategoryHomeCare" Width="210px" DataTextField="Title" TabIndex="3"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlSubCategoryHomeCare_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlApplicationFieldsHomeCare" Width="210px" DataTextField="Title" TabIndex="4"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlApplicationFieldsHomeCare_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlNeckHomeCare" Width="210px" DataTextField="Title" TabIndex="5"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlNeckHomeCare_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlDosageMinHomeCare" Width="210px" DataTextField="Title" TabIndex="6"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlDosageMinHomeCare_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlDosageMaxHomeCare" Width="210px" DataTextField="Title" TabIndex="7"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlDosageMaxHomeCare_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
				</asp:Panel>
				<!-- Food -->
				<asp:Panel runat="server" ID="PanelFood" Visible="false">
					<asp:DropDownList runat="server" ID="ddlRegionF" Width="210px" DataTextField="Title" TabIndex="1"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlRegionF_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlCategoryF" Width="210px" DataTextField="Title" TabIndex="2"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlCategoryF_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlSubCategoryF" Width="210px" DataTextField="Title" TabIndex="3"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlSubCategoryF_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlApplicationFieldsFood" Width="210px" DataTextField="Title" TabIndex="4"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlApplicationFieldsFood_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlNeckF" Width="210px" DataTextField="Title" TabIndex="4"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlNeckF_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlSimpliSqueezeF" Width="210px" DataTextField="Title" TabIndex="5"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlSimpliSqueezeF_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlLinerCapableF" Width="210px" DataTextField="Title" TabIndex="5"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlLinerCapableF_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlDosageF" Width="210px" DataTextField="Title" TabIndex="5"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlDosageF_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
				</asp:Panel>
				<!-- Food -->
				<asp:Panel runat="server" ID="PanelBeverage" Visible="false">
					<asp:DropDownList runat="server" ID="ddlRegionsBV" Width="210px" DataTextField="Title" TabIndex="1"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlRegionsBV_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlCategoryBV" Width="210px" DataTextField="Title" TabIndex="2"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlCategoryBV_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlSubCategoriesBV" Width="210px" DataTextField="Title" TabIndex="3"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlSubCategoriesBV_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlApplicationFieldsBV" Width="210px" DataTextField="Title" TabIndex="4"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlApplicationFieldsBV_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlNeckFinishBV" Width="210px" DataTextField="Title" TabIndex="4"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlNeckFinishBV_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlSimpliSqueezeBV" Width="210px" DataTextField="Title" TabIndex="5"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlSimpliSqueezeBV_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
					<asp:DropDownList runat="server" ID="ddlLinerCapableBV" Width="210px" DataTextField="Title" TabIndex="5"
						DataValueField="Id" CssClass="custom-select select1" OnSelectedIndexChanged="ddlLinerCapableBV_SelectedIndexChanged"
						AutoPostBack="True" AppendDataBoundItems="true" CausesValidation="false">
					</asp:DropDownList>
				</asp:Panel>
			<p class="button">
				<asp:Button runat ="server" ID="btnReset" Text="Reset search" OnClick="btnReset_Click" />
				<asp:Button runat ="server" ID="btnSearch" Text="Start search" OnClick="btnSearch_Click" />
			</p>
		</div>
	</div>
 
	</asp:Panel>
<asp:UpdateProgress ID="upgr" runat="server">
	<ProgressTemplate>
		<div>
			<img src="/Medias/Images/loading.gif" alt="" />
		</div>
	</ProgressTemplate>
</asp:UpdateProgress>   
<FC:UpdateProgressOverlayExtender ID="upoe" runat="server" ControlToOverlayID="upMainContent" CssClass="updateProgress" TargetControlID="upgr" />  
	</contenttemplate>
	<Triggers>
		<asp:AsyncPostBackTrigger ControlID="btnReset" />
		<asp:AsyncPostBackTrigger ControlID="btnSearch" />
	</Triggers>
</asp:UpdatePanel>

Voici le css :

Code:

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.updateProgress{
	position: absolute;
	background-color: red;
	filter: alpha(opacity=70);
	MozOpacity: 0.7;
	opacity: 0.7;
	padding: 0px;
	margin: 0px;
	width: 930px; 
	height: 399px;
	display: block;
	z-index: 100000;
}
 
.updateProgress div
{
	background-color: red;
	padding: 4px;
	position: absolute;
	top: 0;
	left: 0;
	width: 24%;
	height: 290px;
}
 
.updateProgress div img
{
	position: relative;
	top: 50%;
	left: 45%;
}

Merci