diff --git a/src/wp-admin/css/forms.css b/src/wp-admin/css/forms.css
index 6221af08da..84614ee7df 100644
--- a/src/wp-admin/css/forms.css
+++ b/src/wp-admin/css/forms.css
@@ -67,6 +67,11 @@ input[type="url"] {
 	direction: ltr;
 }
 
+/* Vertically align the number selector with the input. */
+input[type="number"] {
+	line-height: inherit;
+}
+
 input[type="checkbox"],
 input[type="radio"] {
 	border: 1px solid #b4b9be;
@@ -385,6 +390,14 @@ input[type="number"].small-text {
 	width: 65px;
 }
 
+input.tiny-text {
+	width: 35px;
+}
+
+input[type="number"].tiny-text {
+	width: 45px;
+}
+
 #doaction,
 #doaction2,
 #post-query-submit {
diff --git a/src/wp-includes/widgets/class-wp-widget-recent-comments.php b/src/wp-includes/widgets/class-wp-widget-recent-comments.php
index ff37c7d16b..a9d07303a1 100644
--- a/src/wp-includes/widgets/class-wp-widget-recent-comments.php
+++ b/src/wp-includes/widgets/class-wp-widget-recent-comments.php
@@ -164,7 +164,7 @@ class WP_Widget_Recent_Comments extends WP_Widget {
 		<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" /></p>
 
 		<p><label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number of comments to show:' ); ?></label>
-		<input id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="text" value="<?php echo $number; ?>" size="3" /></p>
+		<input class="tiny-text" id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="number" step="1" min="1" value="<?php echo $number; ?>" size="3" /></p>
 <?php
 	}
 }
diff --git a/src/wp-includes/widgets/class-wp-widget-recent-posts.php b/src/wp-includes/widgets/class-wp-widget-recent-posts.php
index f6308d9c2a..e53d94abc7 100644
--- a/src/wp-includes/widgets/class-wp-widget-recent-posts.php
+++ b/src/wp-includes/widgets/class-wp-widget-recent-posts.php
@@ -106,7 +106,7 @@ class WP_Widget_Recent_Posts extends WP_Widget {
 		<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo $title; ?>" /></p>
 
 		<p><label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number of posts to show:' ); ?></label>
-		<input id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="text" value="<?php echo $number; ?>" size="3" /></p>
+		<input class="tiny-text" id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="number" step="1" min="1" value="<?php echo $number; ?>" size="3" /></p>
 
 		<p><input class="checkbox" type="checkbox"<?php checked( $show_date ); ?> id="<?php echo $this->get_field_id( 'show_date' ); ?>" name="<?php echo $this->get_field_name( 'show_date' ); ?>" />
 		<label for="<?php echo $this->get_field_id( 'show_date' ); ?>"><?php _e( 'Display post date?' ); ?></label></p>