diff --git a/htdocs/fourn/card.php b/htdocs/fourn/card.php
index 9cfb2fe475f..67ed2d4e741 100644
--- a/htdocs/fourn/card.php
+++ b/htdocs/fourn/card.php
@@ -212,7 +212,7 @@ if ($object->id > 0) {
 		print showValueWithClipboardCPButton(dol_escape_htmltag($object->code_fournisseur));
 		$tmpcheck = $object->check_codefournisseur();
 		if ($tmpcheck != 0 && $tmpcheck != -5) {
-			print ' <font class="error">('.$langs->trans("WrongSupplierCode").')</font>';
+			print ' <span class="error">('.$langs->trans("WrongSupplierCode").')</span>';
 		}
 		print '</td>';
 		print '</tr>';
diff --git a/htdocs/install/upgrade.php b/htdocs/install/upgrade.php
index 129ee9d7827..b36914ad36b 100644
--- a/htdocs/install/upgrade.php
+++ b/htdocs/install/upgrade.php
@@ -283,7 +283,7 @@ if (!GETPOST('action', 'aZ09') || preg_match('/upgrade/i', GETPOST('action', 'aZ
 						$db->free($resql);
 					} else {
 						if ($db->lasterrno() != 'DB_ERROR_NOSUCHTABLE') {
-							print '<tr><td colspan="2"><span class="error">'.dol_escape_htmltag($sql).' : '.dol_escape_htmltag($db->lasterror())."</font></td></tr>\n";
+							print '<tr><td colspan="2"><span class="error">'.dol_escape_htmltag($sql).' : '.dol_escape_htmltag($db->lasterror())."</span></td></tr>\n";
 						}
 					}
 				}
diff --git a/htdocs/margin/tabs/thirdpartyMargins.php b/htdocs/margin/tabs/thirdpartyMargins.php
index 1b3cc468e5c..43e9c87c6e6 100644
--- a/htdocs/margin/tabs/thirdpartyMargins.php
+++ b/htdocs/margin/tabs/thirdpartyMargins.php
@@ -124,7 +124,7 @@ if ($socid > 0) {
 		print showValueWithClipboardCPButton(dol_escape_htmltag($object->code_client));
 		$tmpcheck = $object->check_codeclient();
 		if ($tmpcheck != 0 && $tmpcheck != -5) {
-			print ' <font class="error">('.$langs->trans("WrongCustomerCode").')</font>';
+			print ' <span class="error">('.$langs->trans("WrongCustomerCode").')</span>';
 		}
 		print '</td></tr>';
 	}
@@ -135,7 +135,7 @@ if ($socid > 0) {
 		print showValueWithClipboardCPButton(dol_escape_htmltag($object->code_fournisseur));
 		$tmpcheck = $object->check_codefournisseur();
 		if ($tmpcheck != 0 && $tmpcheck != -5) {
-			print ' <font class="error">('.$langs->trans("WrongSupplierCode").')</font>';
+			print ' <span class="error">('.$langs->trans("WrongSupplierCode").')</span>';
 		}
 		print '</td></tr>';
 	}
diff --git a/htdocs/product/stats/card.php b/htdocs/product/stats/card.php
index 3e7d9045dc8..7437312c1c8 100644
--- a/htdocs/product/stats/card.php
+++ b/htdocs/product/stats/card.php
@@ -445,7 +445,7 @@ if ($result || empty($id)) {
 					$dategenerated = $langs->trans("GeneratedOn", dol_print_date(dol_now(), "dayhour"));
 				}
 			} else {
-				$dategenerated = ($mesg ? '<font class="error">'.$mesg.'</font>' : $langs->trans("ChartNotGenerated"));
+				$dategenerated = ($mesg ? '<span class="error">'.$mesg.'</span>' : $langs->trans("ChartNotGenerated"));
 			}
 			$linktoregenerate = '<a class="reposition" href="'.$_SERVER["PHP_SELF"].'?id='.(GETPOST('id') ?GETPOST('id') : $object->id).((string) $type != '' ? '&type='.$type : '').'&action=recalcul&mode='.$mode.'&search_year='.$search_year.'&search_categ='.$search_categ.'">'.img_picto($langs->trans("ReCalculate").' ('.$dategenerated.')', 'refresh').'</a>';