diff --git a/htdocs/theme/auguria/style.css.php b/htdocs/theme/auguria/style.css.php
index ea1c3b04c00..2fecd817b5e 100644
--- a/htdocs/theme/auguria/style.css.php
+++ b/htdocs/theme/auguria/style.css.php
@@ -469,7 +469,7 @@ foreach($mainmenuusedarray as $val)
 /* Login */
 
 form#login {
-	margin-top: 70px;
+	margin-top: <?php echo $dol_optimize_smallscreen?'30':'60' ?>px;
 	margin-bottom: 30px;
 	font-size: 13px;
 }
diff --git a/htdocs/theme/bureau2crea/style.css.php b/htdocs/theme/bureau2crea/style.css.php
index 132b1c3e12b..00181336286 100644
--- a/htdocs/theme/bureau2crea/style.css.php
+++ b/htdocs/theme/bureau2crea/style.css.php
@@ -508,7 +508,7 @@ li.tmenu a.tmenudisabled {
 /* Login */
 
 form#login {
-	margin-top: 70px;
+	margin-top: <?php echo $dol_optimize_smallscreen?'30':'60' ?>px;
 	margin-bottom: 30px;
 	font-size: 13px;
 }
diff --git a/htdocs/theme/cameleo/style.css.php b/htdocs/theme/cameleo/style.css.php
index 86bd7d8cdda..ec01aef6882 100644
--- a/htdocs/theme/cameleo/style.css.php
+++ b/htdocs/theme/cameleo/style.css.php
@@ -579,7 +579,7 @@ foreach($mainmenuusedarray as $val)
 /* Login */
 
 form#login {
-	margin-top: 70px;
+	margin-top: <?php echo $dol_optimize_smallscreen?'30':'60' ?>px;
 	margin-bottom: 30px;
 	font-size: 13px;
 }