diff --git a/htdocs/core/ajax/ajaxdirtree.php b/htdocs/core/ajax/ajaxdirtree.php
index 1ca88a93d2a..d63726dcea6 100644
--- a/htdocs/core/ajax/ajaxdirtree.php
+++ b/htdocs/core/ajax/ajaxdirtree.php
@@ -439,7 +439,7 @@ function treeOutputForAbsoluteDir($sqltree, $selecteddir, $fullpathselecteddir,
 						print '</td>';
 						print '<td class="left">';
 						if ($nbofsubdir > 0 && $nboffilesinsubdir > 0) {
-							print '<font class="opacitymedium">+'.$nboffilesinsubdir.'</font> ';
+							print '<span class="opacitymedium">+'.$nboffilesinsubdir.'</span> ';
 						}
 						print '</td>';
 
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index df92c688bad..897b248824f 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -6156,7 +6156,7 @@ function yn($yesno, $case = 1, $color = 0)
 		}
 	}
 	if ($color) {
-		return '<span class="'.$classname.'">'.$result.'</font>';
+		return '<span class="'.$classname.'">'.$result.'</span>';
 	}
 	return $result;
 }
diff --git a/htdocs/core/lib/security.lib.php b/htdocs/core/lib/security.lib.php
index da5d9388bd8..be804dc184c 100644
--- a/htdocs/core/lib/security.lib.php
+++ b/htdocs/core/lib/security.lib.php
@@ -853,7 +853,7 @@ function accessforbidden($message = '', $printheader = 1, $printfooter = 1, $sho
 		print $hookmanager->resPrint;
 		if (empty($reshook)) {
 			if ($user->login) {
-				print $langs->trans("CurrentLogin").': <font class="error">'.$user->login.'</font><br>';
+				print $langs->trans("CurrentLogin").': <span class="error">'.$user->login.'</span><br>';
 				print $langs->trans("ErrorForbidden2", $langs->transnoentitiesnoconv("Home"), $langs->transnoentitiesnoconv("Users"));
 			} else {
 				print $langs->trans("ErrorForbidden3");
diff --git a/htdocs/core/lib/signature.lib.php b/htdocs/core/lib/signature.lib.php
index 82f446f04c7..bcb430dac41 100644
--- a/htdocs/core/lib/signature.lib.php
+++ b/htdocs/core/lib/signature.lib.php
@@ -63,16 +63,16 @@ function getOnlineSignatureUrl($mode, $type, $ref = '')
 	$out = '';
 
 	if ($type == 'proposal') {
-		$out = DOL_MAIN_URL_ROOT.'/public/onlinesign/newonlinesign.php?source=proposal&ref='.($mode ? '<font color="#666666">' : '');
+		$out = DOL_MAIN_URL_ROOT.'/public/onlinesign/newonlinesign.php?source=proposal&ref='.($mode ? '<span style="color: #666666">' : '');
 		if ($mode == 1) {
 			$out .= 'proposal_ref';
 		}
 		if ($mode == 0) {
 			$out .= urlencode($ref);
 		}
-		$out .= ($mode ? '</font>' : '');
+		$out .= ($mode ? '</span>' : '');
 		if ($mode == 1) {
-			$out .= '&hashp=<font color="#666666">hash_of_file</font>';
+			$out .= '&hashp=<span style="color: #666666">hash_of_file</span>';
 		} else {
 			include_once DOL_DOCUMENT_ROOT.'/comm/propal/class/propal.class.php';
 			$propaltmp = new Propal($db);
diff --git a/htdocs/core/menus/standard/auguria.lib.php b/htdocs/core/menus/standard/auguria.lib.php
index b191e24b117..6504cfa27a6 100644
--- a/htdocs/core/menus/standard/auguria.lib.php
+++ b/htdocs/core/menus/standard/auguria.lib.php
@@ -546,7 +546,7 @@ function print_left_auguria_menu($db, $menu_array_before, $menu_array_after, &$t
 					print '</div>'."\n";
 					$lastlevel0 = 'enabled';
 				} elseif ($showmenu) {                 // Not enabled but visible (so greyed)
-					print '<div class="menu_titre">'.$tabstring.'<font class="vmenudisabled">'.$menu_array[$i]['titre'].'</font></div>'."\n";
+					print '<div class="menu_titre">'.$tabstring.'<span class="vmenudisabled">'.$menu_array[$i]['titre'].'</span></div>'."\n";
 					$lastlevel0 = 'greyed';
 				} else {
 					$lastlevel0 = 'hidden';
@@ -582,7 +582,7 @@ function print_left_auguria_menu($db, $menu_array_before, $menu_array_after, &$t
 					}
 					print '</div>'."\n";
 				} elseif ($showmenu && $lastlevel0 == 'enabled') {       // Not enabled but visible (so greyed), except if parent was not enabled.
-					print '<div class="menu_contenu'.$cssmenu.'">'.$tabstring.'<font class="vsmenudisabled vsmenudisabledmargin">'.$menu_array[$i]['titre'].'</font><br></div>'."\n";
+					print '<div class="menu_contenu'.$cssmenu.'">'.$tabstring.'<span class="vsmenudisabled vsmenudisabledmargin">'.$menu_array[$i]['titre'].'</span><br></div>'."\n";
 				}
 			}
 
diff --git a/htdocs/core/menus/standard/auguria_menu.php b/htdocs/core/menus/standard/auguria_menu.php
index 77725be2ae7..ebb5edc1c3b 100644
--- a/htdocs/core/menus/standard/auguria_menu.php
+++ b/htdocs/core/menus/standard/auguria_menu.php
@@ -309,7 +309,7 @@ class MenuManager
 					print '</ul>';
 				}
 				if ($val['enabled'] == 2) {
-					print '<font class="vsmenudisabled">'.$val['titre'].'</font>';
+					print '<span class="vsmenudisabled">'.$val['titre'].'</span>';
 				}
 				print '</li>';
 				print '</ul>'."\n";
diff --git a/htdocs/core/menus/standard/eldy.lib.php b/htdocs/core/menus/standard/eldy.lib.php
index 0f4aedcd2f9..1538d765014 100644
--- a/htdocs/core/menus/standard/eldy.lib.php
+++ b/htdocs/core/menus/standard/eldy.lib.php
@@ -2081,7 +2081,7 @@ function print_left_eldy_menu($db, $menu_array_before, $menu_array_after, &$tabM
 					print '</div>'."\n";
 					$lastlevel0 = 'enabled';
 				} elseif ($showmenu) {                 // Not enabled but visible (so greyed)
-					print '<div class="menu_titre">'.$tabstring.'<font class="vmenudisabled">'.$menu_array[$i]['titre'].'</font></div>'."\n";
+					print '<div class="menu_titre">'.$tabstring.'<span class="vmenudisabled">'.$menu_array[$i]['titre'].'</span></div>'."\n";
 					$lastlevel0 = 'greyed';
 				} else {
 					$lastlevel0 = 'hidden';
@@ -2122,7 +2122,7 @@ function print_left_eldy_menu($db, $menu_array_before, $menu_array_after, &$tabM
 					// Not enabled but visible (so greyed), except if parent was not enabled.
 					print '<div class="menu_contenu'.$cssmenu.'">';
 					print $tabstring;
-					print '<font class="vsmenudisabled vsmenudisabledmargin">'.$menu_array[$i]['titre'].'</font><br></div>'."\n";
+					print '<span class="vsmenudisabled vsmenudisabledmargin">'.$menu_array[$i]['titre'].'</span><br></div>'."\n";
 				}
 			}
 
diff --git a/htdocs/core/menus/standard/eldy_menu.php b/htdocs/core/menus/standard/eldy_menu.php
index a9817f3d1a5..35186e423ef 100644
--- a/htdocs/core/menus/standard/eldy_menu.php
+++ b/htdocs/core/menus/standard/eldy_menu.php
@@ -317,14 +317,14 @@ class MenuManager
 					print '</ul>';
 				}
 				if ($val['enabled'] == 2) {
-					print '<font class="vsmenudisabled">';
+					print '<span class="vsmenudisabled">';
 					// Add font-awesome
 					if ($val['level'] == 0 && !empty($val['prefix'])) {
 						print $val['prefix'];
 					}
 
 					print $val['titre'];
-					print '</font>';
+					print '</span>';
 				}
 				print '</li>';
 				print '</ul>'."\n";
diff --git a/htdocs/core/menus/standard/empty.php b/htdocs/core/menus/standard/empty.php
index d1c222570cf..9a45a9b7fc2 100644
--- a/htdocs/core/menus/standard/empty.php
+++ b/htdocs/core/menus/standard/empty.php
@@ -320,7 +320,7 @@ class MenuManager
 					print '</ul>';
 				}
 				if ($val['enabled'] == 2) {
-					print '<font class="vsmenudisabled">'.$val['titre'].'</font>';
+					print '<span class="vsmenudisabled">'.$val['titre'].'</span>';
 				}
 				print '</li>';
 				print '</ul>'."\n";
@@ -407,7 +407,7 @@ class MenuManager
 						if ($menu_array[$i]['enabled']) {
 							print '<div class="menu_titre">'.$tabstring.'<a class="vmenu" href="'.dol_buildpath($menu_array[$i]['url'], 1).'"'.($menu_array[$i]['target'] ? ' target="'.$menu_array[$i]['target'].'"' : '').'>'.$menu_array[$i]['titre'].'</a></div>'."\n";
 						} else {
-							print '<div class="menu_titre">'.$tabstring.'<font class="vmenudisabled">'.$menu_array[$i]['titre'].'</font></div>'."\n";
+							print '<div class="menu_titre">'.$tabstring.'<span class="vmenudisabled">'.$menu_array[$i]['titre'].'</span></div>'."\n";
 						}
 						print '<div class="menu_top"></div>'."\n";
 					}
@@ -433,7 +433,7 @@ class MenuManager
 								print '</span>';
 							}
 						} else {
-							print $tabstring.'<font class="vsmenudisabled vsmenudisabledmargin">'.$menu_array[$i]['titre'].'</font>';
+							print $tabstring.'<span class="vsmenudisabled vsmenudisabledmargin">'.$menu_array[$i]['titre'].'</span>';
 						}
 
 						// If title is not pure text and contains a table, no carriage return added
diff --git a/htdocs/core/tpl/login.tpl.php b/htdocs/core/tpl/login.tpl.php
index 7f460587248..0a4bb149986 100644
--- a/htdocs/core/tpl/login.tpl.php
+++ b/htdocs/core/tpl/login.tpl.php
@@ -310,7 +310,7 @@ if (isset($conf->file->main_authentication) && preg_match('/openid/', $conf->fil
 		print '<a class="alogin" href="'.$url.'">'.$langs->trans("LoginUsingOpenID").'</a>';
 	} else {
 		$langs->load("errors");
-		print '<font class="warning">'.$langs->trans("ErrorOpenIDSetupNotComplete", 'MAIN_AUTHENTICATION_OPENID_URL').'</font>';
+		print '<span class="warning">'.$langs->trans("ErrorOpenIDSetupNotComplete", 'MAIN_AUTHENTICATION_OPENID_URL').'</span>';
 	}
 
 	echo '</div>';