Fix scrollbar width for main body text (#1716)

* Move SDK library expectation to all subcategories

* Retype has been removed

* Double scrollbar width

* Different scrollbar size for main area
diff --git a/lib/resources/styles.css b/lib/resources/styles.css
index ffedb90..8b85a68 100644
--- a/lib/resources/styles.css
+++ b/lib/resources/styles.css
@@ -72,6 +72,7 @@
 ::-webkit-scrollbar-thumb{ background-color: #CCC; }
 ::-webkit-scrollbar-thumb:hover{ background-color: #CCC; }
 ::-webkit-scrollbar{ width: 4px; }
+.main-content::-webkit-scrollbar{ width: 8px; }
 
 .main-content {
   flex: 1;
diff --git a/testing/test_package_docs/static-assets/styles.css b/testing/test_package_docs/static-assets/styles.css
index ffedb90..8b85a68 100644
--- a/testing/test_package_docs/static-assets/styles.css
+++ b/testing/test_package_docs/static-assets/styles.css
@@ -72,6 +72,7 @@
 ::-webkit-scrollbar-thumb{ background-color: #CCC; }
 ::-webkit-scrollbar-thumb:hover{ background-color: #CCC; }
 ::-webkit-scrollbar{ width: 4px; }
+.main-content::-webkit-scrollbar{ width: 8px; }
 
 .main-content {
   flex: 1;