diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 29ac151152a..f2249d673b8 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -968,7 +968,7 @@ class Form
     		$out.=  ajax_autocompleter($selected, $htmlname, DOL_URL_ROOT.'/societe/ajax/company.php', $urloption, $conf->global->COMPANY_USE_SEARCH_TO_SELECT, 0, $ajaxoptions);
 			$out.='<style type="text/css">
 					.ui-autocomplete {
-						z-index: 150;
+						z-index: 250;
 					}
 				</style>';
     		if (empty($hidelabel)) print $langs->trans("RefOrLabel").' : ';
diff --git a/htdocs/theme/eldy/style.css.php b/htdocs/theme/eldy/style.css.php
index c9562e80bad..dd91fc17d28 100644
--- a/htdocs/theme/eldy/style.css.php
+++ b/htdocs/theme/eldy/style.css.php
@@ -866,7 +866,7 @@ div.vmenu, td.vmenu {
 }
 .side-nav {
 	position: absolute;
-    z-index: 200;
+    z-index: 90;
     display: none;
 }
 div.blockvmenulogo
@@ -4222,7 +4222,7 @@ span.noborderoncategories {
 /* ============================================================================== */
 
 ul.ulselectedfields {
-    z-index: 100;			/* To have the select box appears on first plan even when near buttons are decorated by jmobile */
+    z-index: 95;			/* To have the select box appears on first plan even when near buttons are decorated by jmobile */
 }
 dl.dropdown {
     margin:0px;
diff --git a/htdocs/theme/md/style.css.php b/htdocs/theme/md/style.css.php
index 0d6d0fad7af..05b127250cb 100644
--- a/htdocs/theme/md/style.css.php
+++ b/htdocs/theme/md/style.css.php
@@ -832,7 +832,7 @@ td.showDragHandle {
 	position: fixed;
 	top: 50px;
 <?php } ?>
-	z-index: 200;
+	z-index: 90;
 	-webkit-transform: translateZ(0);
 	-moz-transform: translateZ(0);
 	-ms-transform: translateZ(0);
@@ -889,7 +889,7 @@ div.login_block {
 
 	position: auto;
 	top: auto;
-	z-index: 200;
+	z-index: 90;
 }
 div.login_block {
 	/* position: initial !important;*/
@@ -899,7 +899,7 @@ div.login_block {
 	padding-left: 0 ! important;
 }
 #id-left {
-	z-index: 201;
+	z-index: 91;
 	background: #FFF;
 	border-right: 1px solid rgba(0,0,0,0.3);
 <?php if ((GETPOST('testmenuhider') || ! empty($conf->global->MAIN_TESTMENUHIDER)) && empty($conf->global->MAIN_OPTIMIZEFORTEXTBROWSER)) { ?>
@@ -4116,7 +4116,7 @@ span.noborderoncategories {
 /* ============================================================================== */
 
 ul.ulselectedfields {
-    z-index: 100;			/* To have the select box appears on first plan even when near buttons are decorated by jmobile */
+    z-index: 90;			/* To have the select box appears on first plan even when near buttons are decorated by jmobile */
 }
 dl.dropdown {
     margin:0px;