diff --git a/styles.css b/styles.css
index 4a2900b..12cf466 100755
--- a/styles.css
+++ b/styles.css
@@ -2605,6 +2605,12 @@ iframe {
 .lg-col-table {
   display: none; }
 
+.xs-hidden,
+.sm-hidden,
+.md-hidden,
+.lg-hidden {
+  display: hidden; }
+
 .col-xs-0 {
   box-sizing: border-box;
   flex-grow: 0;
@@ -2756,6 +2762,8 @@ iframe {
   order: 1; }
 
 @media only screen and (min-width: 48em) {
+  .sm-hidden {
+    display: inherit; }
   .container {
     width: 46rem; }
   .xs-col-table {
@@ -2863,6 +2871,8 @@ iframe {
     order: 1; } }
 
 @media only screen and (min-width: 62em) {
+  .md-hidden {
+    display: inherit; }
   .container {
     width: 61rem; }
   .md-col-table {
@@ -2970,6 +2980,8 @@ iframe {
     order: 1; } }
 
 @media only screen and (min-width: 75em) {
+  .lg-hidden {
+    display: inherit; }
   .container {
     width: 71rem; }
   .lg-col-table {