diff --git a/core/modules/system/system.base-rtl.css b/core/modules/system/system.base-rtl.css
index 9099c9d..71240d8 100644
--- a/core/modules/system/system.base-rtl.css
+++ b/core/modules/system/system.base-rtl.css
@@ -21,15 +21,15 @@ html.js input.throbbing {
 .progress .percentage {
   float: left;
 }
-.progress-disabled {
-  float: right;
-}
 .ajax-progress {
-  float: right;
+  display: inline-block;
 }
 .ajax-progress .throbber {
   float: right;
 }
+.ajax-progress .message {
+  padding-right: 20px;
+}
 
 /**
  * TableDrag behavior.
diff --git a/core/modules/system/system.base.css b/core/modules/system/system.base.css
index 99fcfcb..f587a84 100644
--- a/core/modules/system/system.base.css
+++ b/core/modules/system/system.base.css
@@ -169,7 +169,7 @@ table.sticky-header {
   width: 15px;
 }
 .ajax-progress .message {
-  padding-left: 20px;
+  padding-left: 20px; /* LTR */
 }
 tr .ajax-progress .throbber {
   margin: 0 2px;