Änderung CSS Fehler behoben

Customers/Invoices.aspx

@@ -23,7 +23,7 @@
             }
             .g-3 {
                 margin-left: -4px;
-            }
+            }            
             
         }
         @media (max-width: 558.98px) {
@@ -60,8 +60,8 @@
     <asp:UpdatePanel ID="panelupdate1" runat="server"><ContentTemplate>
         <!-- Webiste-Content-->  
         <div id="containerseiterand" style="margin-left:auto;margin-right:auto">
-            <div class="container-fluid">
-                <div id="cont1">
+            <div id="maincont">
+                <div id="cont124">
                    <asp:HiddenField ID="hidField" ClientIDMode="Static" runat="server" />
        
                     <h1>Invoices</h1>