diff --git a/learn/rwd/flex-based-rwd.html b/learn/rwd/flex-based-rwd.html
index 214c12ae..ef51b533 100644
--- a/learn/rwd/flex-based-rwd.html
+++ b/learn/rwd/flex-based-rwd.html
@@ -2,6 +2,7 @@
+
A simple flexbox-based responsive design
body {
diff --git a/learn/rwd/grid-based-rwd.html b/learn/rwd/grid-based-rwd.html
index 27a4c256..6d250005 100644
--- a/learn/rwd/grid-based-rwd.html
+++ b/learn/rwd/grid-based-rwd.html
@@ -2,6 +2,7 @@
+
A simple grid-based responsive design
body {
diff --git a/learn/rwd/type-rwd.html b/learn/rwd/type-rwd.html
index 59b72618..6e7afa31 100644
--- a/learn/rwd/type-rwd.html
+++ b/learn/rwd/type-rwd.html
@@ -2,6 +2,7 @@
+
Demonstration of responsive typography
html {
diff --git a/learn/rwd/type-vw.html b/learn/rwd/type-vw.html
index 2e1a3580..7cb380b1 100644
--- a/learn/rwd/type-vw.html
+++ b/learn/rwd/type-vw.html
@@ -2,6 +2,7 @@
+
Demonstration of responsive typography with vw
html {