diff --git a/r4ds.scss b/r4ds.scss
index bed1393..3c53e9d 100644
--- a/r4ds.scss
+++ b/r4ds.scss
@@ -1,6 +1,7 @@
 /*-- scss:defaults --*/
 
 $primary: #637238 !default;
+$font-size-root: 18px !default;
 
 /*-- scss:rules --*/
 
@@ -22,19 +23,20 @@ img.quarto-cover-image {
 
 /* Headings ------------------------------------------------------ */
 
+#title-block-header.quarto-title-block.default .quarto-title h1.title {
+  margin-bottom: 0.5rem;
+}
+
 h2 {
   margin-top: 2rem;
   margin-bottom: 1rem;
-  font-size: 1.5rem;
+  font-size: 1.4rem;
+  font-weight: 600;
 }
-h3 { margin-top: 1.5em; font-size: 1.2rem; }
+h3 { margin-top: 1.5em; font-size: 1.2rem; font-weight: 500; }
 h4 { margin-top: 1.5em; font-size: 1.1rem; }
 h5 { margin-top: 1.5em; font-size: 1rem; }
 
-h1, h2, h3, h4, h5 {
-  line-height: 1.3;
-}
-
 .quarto-section-identifier {
   color: #6C6C6C;
   font-weight: normal;
@@ -54,23 +56,3 @@ code a:any-link {
 pre {
   background-image: linear-gradient(160deg,#f8f8f8 0,#f1f1f1 100%);
 }
-
-/* Printing ------------------------------------------------ */
-
-@media print {
-  :root {
-    font-size: 11pt;
-  }
-  #quarto-sidebar, #TOC, .nav-page {
-    display: none;
-  }
-  .page-columns .content {
-    grid-column-start: page-start;
-  }
-  .fixed-top {
-    position: relative;
-  }
-  .panel-caption, .figure-caption, figcaption {
-    color: #666;
-  }
-}