diff --git a/agaric/sass/agaric/_base.typography.scss b/agaric/sass/agaric/_base.typography.scss
index d4f483d..ee6c1a9 100644
--- a/agaric/sass/agaric/_base.typography.scss
+++ b/agaric/sass/agaric/_base.typography.scss
@@ -29,27 +29,42 @@
 }
 
 .title.is-1 {
-  font-size: $size-1;
+  font-size: $size-2;
+  @include desktop {
+    font-size: $size-1;
+  }
   line-height: 1.07em;
 }
 
 .title.is-2 {
-  font-size: $size-2;
+  font-size: $size-3;
+  @include desktop {
+    font-size: $size-2;
+  }
   line-height: 1.14em;
 }
 
 .title.is-3 {
-  font-size: $size-3;
+  font-size: $size-4;
+  @include desktop {
+    font-size: $size-3;
+  }
   line-height: 1.2em;
 }
 
 .title.is-4 {
-  font-size: $size-4;
+  font-size: $size-5;
+  @include desktop {
+    font-size: $size-4;
+  }
   line-height: 1.43em;
 }
 
 .title.is-5 {
-  font-size: $size-5;
+  font-size: 1.1rem;
+  @include desktop {
+    font-size: $size-5;
+  }
   line-height: 1.2em;
 }