Issue #2343281 by Upchuk, herom: Fixed RTL issues in content listing page, aka /admin/content.

core/modules/system/css/system.theme.css

@@ -407,6 +407,10 @@ ul.links a.active {
   margin: 0;
   padding: 0;
 }
+[dir="rtl"] .breadcrumb ol {
+  /* This is required to win over specifity of [dir="rtl"] ol */
+  margin-right: 0;
+}
 .breadcrumb li {
   display: inline;
   list-style-type: none;
@@ -461,6 +465,10 @@ ul.tabs {
   padding: 0;
   margin: 1em 0;
 }
+[dir="rtl"] .action-links {
+  /* This is required to win over specifity of [dir="rtl"] ul */
+  margin-right: 0;
+}
 .action-links li {
   display: inline-block;
   margin: 0 0.3em;

core/themes/seven/css/base/elements.css

@@ -111,7 +111,8 @@ ul {
   margin: 0.25em 0 0.25em 1.5em; /* LTR */
 }
 [dir="rtl"] ul {
-  margin: 0.25em 1.5em 0.25em 0;
+  margin-left: 0;
+  margin-right: 1.5em;
 }
 ol {
   list-style-type: decimal;
@@ -119,7 +120,8 @@ ol {
   padding: 0;
 }
 [dir="rtl"] ol {
-  margin: 0.25em 2em 0.25em 0;
+  margin-left: 0;
+  margin-right: 2em;
 }
 quote,
 code {

core/themes/seven/css/components/branding.css

@@ -6,6 +6,3 @@
   background-color: #e0e0d8;
   padding: 24px 0 0;
 }
-[dir="rtl"] #branding {
-  padding: 20px 20px 0 20px;
-}

core/themes/seven/css/components/page-title.css

@@ -13,6 +13,3 @@
   font-weight: 600;
   -webkit-font-smoothing: antialiased;
 }
-[dir="rtl"] #branding h1.page-title {
-  float: right;
-}