diff --git a/template.php b/template.php
index 13c544f..579f755 100644
--- a/template.php
+++ b/template.php
@@ -379,7 +379,7 @@ function section_class($page, $onefour=true){
   } else {
     $cols = (bool) $page['user5'] + (bool) $page['user6'] + (bool) $page['user7'] + (bool) $page['user8'];
   }
-  if((theme_get_setting('grid_responsive') == '1') && ((preg_match('/(?i)msie [2-7]/',$_SERVER['HTTP_USER_AGENT']))) == FALSE) {
+  if((theme_get_setting('grid_responsive') == '1') && !zeropoint_browser_is_ie()) {
     if ($cols == '1') {
       return 'pure-u-1';
     }
@@ -399,7 +399,7 @@ function section_class($page, $onefour=true){
 
 function first_class(){
   $w1 = (theme_get_setting('first_width'));
-  if((theme_get_setting('grid_responsive') == '1') && ((preg_match('/(?i)msie [2-7]/',$_SERVER['HTTP_USER_AGENT']))) == FALSE) {
+  if ((theme_get_setting('grid_responsive') == '1') && !zeropoint_browser_is_ie()) {
     return 'pure-u-1 pure-u-md-'.$w1.'-24';
   } else {
     return 'pure-u-'.$w1.'-24';
@@ -408,7 +408,7 @@ function first_class(){
 
 function second_class(){
   $w2 = (theme_get_setting('second_width'));
-  if((theme_get_setting('grid_responsive') == '1') && ((preg_match('/(?i)msie [2-7]/',$_SERVER['HTTP_USER_AGENT']))) == FALSE) {
+  if ((theme_get_setting('grid_responsive') == '1') && !zeropoint_browser_is_ie()) {
     return 'pure-u-1 pure-u-md-'.$w2.'-24';
   } else {
     return 'pure-u-'.$w2.'-24';
@@ -423,27 +423,27 @@ function cont_class($page){
   $cont2 = 24 - $w2;
   $cont0 = 24 - ($w1+$w2);
   if (($page['sidebar_first']) && (!$page['sidebar_second'])) {
-    if((theme_get_setting('grid_responsive') == '1') && ((preg_match('/(?i)msie [2-7]/',$_SERVER['HTTP_USER_AGENT']))) == FALSE) {
+    if ((theme_get_setting('grid_responsive') == '1') && !zeropoint_browser_is_ie()) {
       return 'pure-u-1 pure-u-md-'.$cont1.'-24';
     } else {
       return 'pure-u-'.$cont1.'-24';
     }
   }
   if ((!$page['sidebar_first']) && ($page['sidebar_second'])) {
-    if((theme_get_setting('grid_responsive') == '1') && ((preg_match('/(?i)msie [2-7]/',$_SERVER['HTTP_USER_AGENT']))) == FALSE) {
+    if ((theme_get_setting('grid_responsive') == '1') && !zeropoint_browser_is_ie()) {
       return 'pure-u-1 pure-u-md-'.$cont2.'-24';
     } else {
       return 'pure-u-'.$cont2.'-24';
     }
   }
   if (($page['sidebar_first']) && ($page['sidebar_second'])) {
-    if((theme_get_setting('grid_responsive') == '1') && ((preg_match('/(?i)msie [2-7]/',$_SERVER['HTTP_USER_AGENT']))) == FALSE) {
+    if ((theme_get_setting('grid_responsive') == '1') && !zeropoint_browser_is_ie()) {
       return 'pure-u-1 pure-u-md-'.$cont0.'-24';
     } else {
       return 'pure-u-'.$cont0.'-24';
     }
   } else {
-    if((theme_get_setting('grid_responsive') == '1') && ((preg_match('/(?i)msie [2-7]/',$_SERVER['HTTP_USER_AGENT']))) == FALSE) {
+    if ((theme_get_setting('grid_responsive') == '1') && !zeropoint_browser_is_ie()) {
       return 'pure-u-1 pure-u-md-24-24';
     } else {
       return 'pure-u-24-24';
@@ -666,3 +666,13 @@ function zeropoint_css_alter(&$css) {
   );
   $css = array_diff_key($css, $exclude);
 }
+
+/**
+ * Detects Internet Explorer Zeropoint style.
+ *
+ * @return TRUE|FALSE
+ */
+function zeropoint_browser_is_ie() {
+  // Case insensitive match of MSIE versions 2 through 7.
+  return !empty($_SERVER['HTTP_USER_AGENT']) && preg_match('/(?i)msie [2-7]/', $_SERVER['HTTP_USER_AGENT']);
+}