Index: src/wp-admin/css/common.css
===================================================================
--- src/wp-admin/css/common.css	(revision 31467)
+++ src/wp-admin/css/common.css	(working copy)
@@ -1505,6 +1505,21 @@
 	display: none;
 }
 
+.metabox-prefs .screen-options {
+	padding-top: 10px;
+}
+
+.metabox-prefs .screen-options input,
+.metabox-prefs .screen-options label {
+	margin-top: 0;
+	margin-bottom: 0;
+	vertical-align: middle;
+}
+
+.metabox-prefs .screen-options label {
+	line-height: 28px;
+}
+
 /*------------------------------------------------------------------------------
   6.2 - Help Menu
 ------------------------------------------------------------------------------*/
Index: src/wp-admin/includes/screen.php
===================================================================
--- src/wp-admin/includes/screen.php	(revision 31467)
+++ src/wp-admin/includes/screen.php	(working copy)
@@ -1169,7 +1169,7 @@
 					id="<?php echo esc_attr( $option ); ?>" maxlength="3"
 					value="<?php echo esc_attr( $per_page ); ?>" />
 				<label for="<?php echo esc_attr( $option ); ?>">
-					<?php echo esc_html( $per_page_label ); ?>
+					<?php printf( '%1$s %2$s', $per_page_label, __( 'per page' ) ); ?>
 				</label>
 			<?php endif;