diff --git a/main/template/rainbow/gradebook/custom_certificate.tpl b/main/template/rainbow/gradebook/custom_certificate.tpl
index 88b8801bcd..46dc66ad94 100644
--- a/main/template/rainbow/gradebook/custom_certificate.tpl
+++ b/main/template/rainbow/gradebook/custom_certificate.tpl
@@ -19,19 +19,19 @@
                 
                 <table border="0" bgcolor="#92c647" cellpadding="0" cellspacing="0" align="center" width="80%">
     <tr>
-        <td bgcolor="#92c647"><img src="{{ _p.web_css_theme }}images/header_top.png" style="display: block;"></td>
+        <td style="border-collapse: collapse; padding: 0;" bgcolor="#92c647"><img src="{{ _p.web_css_theme }}images/header_top.png" style="display: block;"></td>
     </tr>
     <tr>
-        <td>
+        <td style="border-collapse: collapse; padding: 0;">
             <table border="0" cellspacing="0" cellpadding="0" width="100%"> 
                 <tr>
-                    <td bgcolor="#92c647" width=58 height=91>
+                    <td style="border-collapse: collapse; padding: 0;" bgcolor="#92c647" width=58 height=91>
                         <img src="{{ _p.web_css_theme }}images/lado-b.png" style="display:block;">
                     </td>
                     <td bgcolor="#92c647" width=700 height=91 style="font-family:CourierSans-Light; font-weight: bold; line-height: 47px; color:#FFF; padding-bottom: 10px; font-size: 45px;">
                         {{ 'CertificateHeader' | get_lang }}
                     </td>
-                    <td bgcolor="#92c647" width=58 height=91>
+                    <td style="border-collapse: collapse; padding: 0;" bgcolor="#92c647" width=58 height=91>
                         <img src="{{ _p.web_css_theme }}images/lado-header.png" style="display:block;">
                     </td>
                 </tr>
@@ -39,10 +39,10 @@
         </td>
     </tr>
     <tr>
-        <td>
+        <td style="border-collapse: collapse; padding: 0;">
             <table bgcolor="#FFFFFF" border="0" cellspacing="0" cellpadding="0" width="100%" height=900>
                 <tr>
-                    <td bgcolor="#92c647" height=755><img src="{{ _p.web_css_theme }}images/lado-a.png" style="display:block;"></td>
+                    <td bgcolor="#92c647" height=755 style="border-collapse: collapse; padding: 0;"><img src="{{ _p.web_css_theme }}images/lado-a.png" style="display:block;"></td>
                     <td height=755 style="font-family:CourierSans-Light; line-height: 22px; color:#40ad49; padding: 40px; font-size: 18px;" valign="top">
                         <h3 style="color: #672290; font-size: 24px;">
                             {{ complete_name }}
@@ -74,7 +74,7 @@
                             {{ 'ThePlatformTeam' | get_lang }}</p>
                         <br />
                     </td>
-                    <td height=755 bgcolor="#92c647">
+                    <td height=755 bgcolor="#92c647" style="border-collapse: collapse; padding: 0;">
                         <img src="{{ _p.web_css_theme }}images/lado-b.png" style="display:block;">
                     </td>
                 </tr>
@@ -82,14 +82,14 @@
         </td>
     </tr>
     <tr>
-        <td>
+        <td style="border-collapse: collapse; padding: 0;">
             <table border="0" cellspacing="0" cellpadding="0" width="100%" height=91>
                 <tr>
-                    <td bgcolor="#92c647" width=58 height=91><img src="{{ _p.web_css_theme }}images/lado-b.png"  style="display:block;"></td>
-                    <td bgcolor="#92c647" width=500 height=91 style="font-family:CourierSans-Light; line-height: 18px; color:#FFF;">
+                    <td bgcolor="#92c647" width=58 height=91 style="border-collapse: collapse; padding: 0;"><img src="{{ _p.web_css_theme }}images/lado-b.png"  style="display:block;"></td>
+                    <td bgcolor="#92c647" width=500 height=91 style="border-collapse: collapse; padding: 0; font-family:CourierSans-Light; line-height: 18px; color:#FFF;">
                         {{ 'CertificateFooter' | get_lang }}
                     </td>
-                    <td bgcolor="#92c647" width=245 height=91><img src="{{ _p.web_css_theme }}images/lado-footer.png" style="display:block;"></td>
+                    <td bgcolor="#92c647" width=245 height=91 style="border-collapse: collapse; padding: 0;"><img src="{{ _p.web_css_theme }}images/lado-footer.png" style="display:block; "></td>
                 </tr>
             </table>
         </td>