diff --git a/htdocs/modulebuilder/index.php b/htdocs/modulebuilder/index.php
index 5b53de530bd..069fcad2bd2 100644
--- a/htdocs/modulebuilder/index.php
+++ b/htdocs/modulebuilder/index.php
@@ -2419,7 +2419,7 @@ elseif (!empty($module))
 						else
 						{
 							//print '<span class="opacitymedium">'.$langs->trans("FileNotYetGenerated").'</span> ';
-							print '<a class="editfielda" href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&tabobj='.$tabobj.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initapi&format=php&file='.urlencode($pathtoapi).'"><input type="button" class="button" value="'.$langs->trans("Generate").'"></a>';
+							print '<a class="editfielda" href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&tabobj='.$tabobj.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initapi&format=php&file='.urlencode($pathtoapi).'"><input type="button" class="button buttongen" value="'.$langs->trans("Generate").'"></a>';
 						}
 						// PHPUnit
 						print '<br>';
@@ -2434,7 +2434,7 @@ elseif (!empty($module))
 						else
 						{
 							//print '<span class="opacitymedium">'.$langs->trans("FileNotYetGenerated").'</span> ';
-							print '<a class="editfielda" href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&tabobj='.$tabobj.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initphpunit&format=php&file='.urlencode($pathtophpunit).'"><input type="button" class="button" value="'.$langs->trans("Generate").'"></a>';
+							print '<a class="editfielda" href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&tabobj='.$tabobj.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initphpunit&format=php&file='.urlencode($pathtophpunit).'"><input type="button" class="button buttongen" value="'.$langs->trans("Generate").'"></a>';
 						}
 						print '<br>';
 
@@ -2470,7 +2470,7 @@ elseif (!empty($module))
 							print '<a class="reposition editfielda" href="'.$_SERVER["PHP_SELF"].'?tab='.$tab.'&tabobj='.$tabobj.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=droptableextrafields">'.$langs->trans("DropTableIfEmpty").'</a>';
 						}
 						else {
-							print '<a class="editfielda" href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&tabobj='.$tabobj.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initsqlextrafields&format=sql&file='.urlencode($pathtosqlextra).'"><input type="button" class="button" value="'.$langs->trans("Generate").'"></a>';
+							print '<a class="editfielda" href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&tabobj='.$tabobj.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initsqlextrafields&format=sql&file='.urlencode($pathtosqlextra).'"><input type="button" class="button buttongen" value="'.$langs->trans("Generate").'"></a>';
 						}
 						//print ' &nbsp; <a href="'.$_SERVER["PHP_SELF"].'">'.$langs->trans("RunSql").'</a>';
 						print '<br>';
@@ -2563,15 +2563,15 @@ elseif (!empty($module))
 							//$propstat = $reflector->getStaticProperties();
 							//var_dump($reflectorpropdefault);
 
-							print '<form action="'.$_SERVER["PHP_SELF"].'" method="POST">';
+							print '<form action="'.$_SERVER["PHP_SELF"].'" method="POST" class="center">';
 							print '<input type="hidden" name="token" value="'.newToken().'">';
 							print '<input type="hidden" name="action" value="addproperty">';
 							print '<input type="hidden" name="tab" value="objects">';
 							print '<input type="hidden" name="module" value="'.dol_escape_htmltag($module.($forceddirread ? '@'.$dirread : '')).'">';
 							print '<input type="hidden" name="tabobj" value="'.dol_escape_htmltag($tabobj).'">';
 
-							print '<input class="button" type="submit" name="regenerateclasssql" value="'.$langs->trans("RegenerateClassAndSql").'">';
-							//print '<input class="button" type="submit" name="regeneratemissing" value="'.$langs->trans("RegenerateMissingFiles").'">';
+							print '<input class="button buttongen" type="submit" name="regenerateclasssql" value="'.$langs->trans("RegenerateClassAndSql").'">';
+							//print '<input class="button buttongen" type="submit" name="regeneratemissing" value="'.$langs->trans("RegenerateMissingFiles").'">';
 							print '<br><br>';
 
 							print load_fiche_titre($langs->trans("ObjectProperties"), '', '');
@@ -3121,7 +3121,7 @@ elseif (!empty($module))
 				else
 				{
 					print '<span class="opacitymedium">'.$langs->trans("FileNotYetGenerated").'</span>';
-					print '<a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=inithook&format=php&file='.urlencode($pathtohook).'"><input type="button" class="button" value="'.$langs->trans("Generate").'"></a></td>';
+					print '<a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=inithook&format=php&file='.urlencode($pathtohook).'"><input type="button" class="button buttongen" value="'.$langs->trans("Generate").'"></a></td>';
 					print '<td></td>';
 				}
 				print '</tr>';
@@ -3191,7 +3191,7 @@ elseif (!empty($module))
 				{
 					print '<tr><td>';
 					print '<span class="fa fa-file-o"></span> '.$langs->trans("NoTrigger");
-					print '<a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=inittrigger&format=php"><input type="button" class="button" value="'.$langs->trans("Generate").'"></a></td>';
+					print '<a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=inittrigger&format=php"><input type="button" class="button buttongen" value="'.$langs->trans("Generate").'"></a></td>';
 					print '<td></td>';
 					print '</tr>';
 				}
@@ -3246,7 +3246,7 @@ elseif (!empty($module))
 				else
 				{
 					print '<span class="opacitymedium">'.$langs->trans("FileNotYetGenerated").'</span>';
-					print '</td><td><a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initcss&format=php&file='.urlencode($pathtohook).'"><input type="button" class="button" value="'.$langs->trans("Generate").'"></a></td>';
+					print '</td><td><a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initcss&format=php&file='.urlencode($pathtohook).'"><input type="button" class="button buttongen" value="'.$langs->trans("Generate").'"></a></td>';
 				}
 				print '</tr>';
 			}
@@ -3298,7 +3298,7 @@ elseif (!empty($module))
 				else
 				{
 					print '<span class="opacitymedium">'.$langs->trans("FileNotYetGenerated").'</span>';
-					print '</td><td><a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initjs&format=php&file='.urlencode($pathtohook).'"><input type="button" class="button" value="'.$langs->trans("Generate").'"></a></td>';
+					print '</td><td><a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initjs&format=php&file='.urlencode($pathtohook).'"><input type="button" class="button buttongen" value="'.$langs->trans("Generate").'"></a></td>';
 				}
 				print '</tr>';
 			}
@@ -3356,7 +3356,7 @@ elseif (!empty($module))
 				else
 				{
 					print '<tr><td><span class="fa fa-file-o"></span> '.$langs->trans("NoWidget");
-					print '</td><td><a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initwidget&format=php"><input type="button" class="button" value="'.$langs->trans("Generate").'"></a>';
+					print '</td><td><a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initwidget&format=php"><input type="button" class="button buttongen" value="'.$langs->trans("Generate").'"></a>';
 					print '</td></tr>';
 				}
 				print '</table>';
@@ -3442,7 +3442,7 @@ elseif (!empty($module))
 				else
 				{
 					print '<tr><td><span class="fa fa-file-o"></span> '.$langs->trans("NoCLIFile");
-					print '</td><td><a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initcli&format=php"><input type="button" class="button" value="'.$langs->trans("Generate").'"></a>';
+					print '</td><td><a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initcli&format=php"><input type="button" class="button buttongen" value="'.$langs->trans("Generate").'"></a>';
 					print '</td></tr>';
 				}
 				print '</table>';
@@ -3624,7 +3624,7 @@ elseif (!empty($module))
 				{
 					print '<tr><td>';
 					print '<span class="fa fa-file-o"></span> '.$langs->trans("FileNotYetGenerated");
-					print '</td><td><a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initdoc&format=php"><input type="button" class="button" value="'.$langs->trans("Generate").'"></a></td>';
+					print '</td><td><a href="'.$_SERVER['PHP_SELF'].'?tab='.$tab.'&module='.$module.($forceddirread ? '@'.$dirread : '').'&action=initdoc&format=php"><input type="button" class="button buttongen" value="'.$langs->trans("Generate").'"></a></td>';
 					print '</tr>';
 				}
 				print '</table>';