diff --git a/archive.php b/archive.php
index 0360913..9aa0e98 100644
--- a/archive.php
+++ b/archive.php
@@ -7,7 +7,7 @@
 
 get_header(); ?>
 
-	<section id="primary" class="medium-<?php echo memberlite_getColumnsRatio(); ?> columns content-area">
+	<section id="primary" class="medium-<?php echo esc_attr(memberlite_getColumnsRatio() ); ?> columns content-area">
 		<?php do_action( 'memberlite_before_main' ); ?>
 		<main id="main" class="site-main" role="main">
 		<?php do_action( 'memberlite_before_loop' ); ?>
diff --git a/components/header/masthead.php b/components/header/masthead.php
index 8f7950d..d2c9f75 100644
--- a/components/header/masthead.php
+++ b/components/header/masthead.php
@@ -20,7 +20,7 @@
 
 		<header class="masthead">
 			<div class="row">
-				<div class="medium-<?php echo memberlite_getColumnsRatio( 'masthead' ); ?> columns">
+				<div class="medium-<?php echo esc_attr(memberlite_getColumnsRatio( 'masthead' ) ); ?> columns">
 					
 					<?php do_action( 'memberlite_before_masthead_inner' ); ?>
 					
diff --git a/forums.php b/forums.php
index 025cfdf..7b642e1 100644
--- a/forums.php
+++ b/forums.php
@@ -15,7 +15,7 @@
 <?php
 	} else {
 	?>
-	medium-<?php echo memberlite_getColumnsRatio(); ?><?php } ?> columns content-area">
+	medium-<?php echo esc_attr( memberlite_getColumnsRatio() ); ?><?php } ?> columns content-area">
 		<main id="main" class="site-main" role="main">
 
 			<?php
diff --git a/header.php b/header.php
index e9dbdff..cbf3188 100644
--- a/header.php
+++ b/header.php
@@ -39,7 +39,7 @@
 			if ( is_page_template( 'templates/interstitial.php' ) || empty( $show_header_right ) ) {
 				echo 'large-12';
 			} else {
-				echo 'medium-' . memberlite_getColumnsRatio( 'header-left' ); }
+				echo 'medium-' . esc_attr( memberlite_getColumnsRatio( 'header-left' ) ); }
 ?>
  columns site-branding">
 				
@@ -52,7 +52,7 @@
 			</div><!-- .column4 -->
 			
 			<?php if ( ! empty( $show_header_right ) ) { ?>
-				<div class="medium-<?php echo memberlite_getColumnsRatio( 'header-right' ); ?> columns header-right
+				<div class="medium-<?php echo esc_attr( memberlite_getColumnsRatio( 'header-right' ) ); ?> columns header-right
 												<?php
 												if ( $meta_login == false ) {
 								?>
diff --git a/index.php b/index.php
index 218e3e4..a7f8f07 100644
--- a/index.php
+++ b/index.php
@@ -5,7 +5,7 @@
  * @package Memberlite
  */
 get_header(); ?>
-	<div id="primary" class="medium-<?php echo memberlite_getColumnsRatio(); ?> columns content-area">
+	<div id="primary" class="medium-<?php echo esc_attr( memberlite_getColumnsRatio() ); ?> columns content-area">
 		<?php do_action( 'memberlite_before_main' ); ?>
 		<main id="main" class="site-main" role="main">
 		<?php do_action( 'memberlite_before_loop' ); ?>
diff --git a/mp_store.php b/mp_store.php
index 37eaa1f..092ed51 100644
--- a/mp_store.php
+++ b/mp_store.php
@@ -12,7 +12,7 @@
 
 get_header(); ?>
 
-	<div id="primary" class="medium-<?php echo memberlite_getColumnsRatio(); ?> columns content-area">
+	<div id="primary" class="medium-<?php echo esc_attr( memberlite_getColumnsRatio() ); ?> columns content-area">
 		<?php do_action( 'memberlite_before_main' ); ?>
 		<main id="main" class="site-main" role="main">
 			<?php do_action( 'memberlite_before_loop' ); ?>
diff --git a/page.php b/page.php
index 1d538c8..382d1e2 100644
--- a/page.php
+++ b/page.php
@@ -7,7 +7,7 @@
 
 get_header(); ?>
 
-	<div id="primary" class="medium-<?php echo memberlite_getColumnsRatio(); ?> columns content-area">
+	<div id="primary" class="medium-<?php echo esc_attr( memberlite_getColumnsRatio() ); ?> columns content-area">
 		<?php do_action( 'memberlite_before_main' ); ?>
 		<main id="main" class="site-main" role="main">
 			<?php do_action( 'memberlite_before_loop' ); ?>
diff --git a/search.php b/search.php
index 1a78652..5af7e31 100644
--- a/search.php
+++ b/search.php
@@ -5,7 +5,7 @@
  * @package Memberlite
  */
 get_header(); ?>
-	<section id="primary" class="medium-<?php echo memberlite_getColumnsRatio(); ?> columns content-area">
+	<section id="primary" class="medium-<?php echo esc_attr( memberlite_getColumnsRatio() ); ?> columns content-area">
 		<?php do_action( 'memberlite_before_main' ); ?>
 		<main id="main" class="site-main" role="main">
 		<?php do_action( 'memberlite_before_loop' ); ?>
diff --git a/sidebar.php b/sidebar.php
index 3d2d13b..06879b3 100644
--- a/sidebar.php
+++ b/sidebar.php
@@ -8,7 +8,7 @@
 
 <?php do_action( 'memberlite_before_sidebar' ); ?>
 
-<div id="secondary" class="medium-<?php echo memberlite_getColumnsRatio( 'sidebar' ); ?> columns widget-area" role="complementary">
+<div id="secondary" class="medium-<?php echo esc_attr( memberlite_getColumnsRatio( 'sidebar' ) ); ?> columns widget-area" role="complementary">
 
 <?php do_action( 'memberlite_before_sidebar_widgets' ); ?>
 
diff --git a/single-testimonials-widget.php b/single-testimonials-widget.php
index 1269370..5f89618 100644
--- a/single-testimonials-widget.php
+++ b/single-testimonials-widget.php
@@ -5,7 +5,7 @@
  * @package Memberlite
  */
 get_header(); ?>
-	<div id="primary" class="medium-<?php echo memberlite_getColumnsRatio(); ?> columns content-area">
+	<div id="primary" class="medium-<?php echo esc_attr( memberlite_getColumnsRatio() ); ?> columns content-area">
 		<?php do_action( 'memberlite_before_main' ); ?>
 		<main id="main" class="site-main" role="main">
 		<?php do_action( 'memberlite_after_loop' ); ?>
diff --git a/single.php b/single.php
index 0bd0bc0..a9a9b21 100644
--- a/single.php
+++ b/single.php
@@ -5,7 +5,7 @@
  * @package Memberlite
  */
 get_header(); ?>
-	<div id="primary" class="medium-<?php echo memberlite_getColumnsRatio(); ?> columns content-area">
+	<div id="primary" class="medium-<?php echo esc_attr( memberlite_getColumnsRatio() ); ?> columns content-area">
 		<?php do_action( 'memberlite_before_main' ); ?>
 		<main id="main" class="site-main" role="main">
 		<?php do_action( 'memberlite_before_loop' ); ?>
diff --git a/templates/interstitial.php b/templates/interstitial.php
index 0f5dc57..0bbb79c 100644
--- a/templates/interstitial.php
+++ b/templates/interstitial.php
@@ -9,7 +9,7 @@
 
 get_header(); ?>
 
-	<div id="primary" class="medium-<?php echo memberlite_getColumnsRatio(); ?> columns content-area">
+	<div id="primary" class="medium-<?php echo esc_attr( memberlite_getColumnsRatio() ); ?> columns content-area">
 		<?php do_action( 'memberlite_before_main' ); ?>
 		<main id="main" class="site-main" role="main">
 			<?php do_action( 'memberlite_before_loop' ); ?>
diff --git a/templates/landing.php b/templates/landing.php
index 3c4d890..cbf78cf 100644
--- a/templates/landing.php
+++ b/templates/landing.php
@@ -8,7 +8,7 @@
  */
 
 get_header(); ?>
-	<div id="primary" class="medium-<?php echo memberlite_getColumnsRatio(); ?> columns content-area">
+	<div id="primary" class="medium-<?php echo esc_attr( memberlite_getColumnsRatio() ); ?> columns content-area">
 		<?php do_action( 'memberlite_before_main' ); ?>
 		<main id="main" class="site-main" role="main">
 		<?php do_action( 'memberlite_before_loop' ); ?>