diff --git a/src/themes/style.css b/src/themes/style.css
index 9788e154..c06886c2 100644
--- a/src/themes/style.css
+++ b/src/themes/style.css
@@ -13,6 +13,7 @@
 
   header {
     border-bottom: 1px solid #163855;
+    border-right: 1px solid #163855;
   }
 }
 
@@ -27,6 +28,7 @@
 
   header {
     border-bottom: 1px solid #d9d7d7;
+    border-right: 1px solid #d9d7d7;
   }
 }
 
@@ -45,6 +47,7 @@ body {
   display: flex;
   flex-direction: column;
   height: 100%;
+  overflow: auto;
 }
 
 header {
@@ -59,6 +62,9 @@ main {
   flex-grow: 1;
   padding: 1em 2em 1em 2em;
   user-select: none;
+
+  overflow: visible;
+  min-height: 0;
 }
 
 #nav-title {
@@ -216,7 +222,8 @@ a, a:visited, a:hover {
 }
 
 #code {
-  overflow-x: auto;
+  overflow: visible;
+  min-width: fit-content;
 }
 
 td.line-number {