diff --git a/css/screen.css b/css/screen.css
index 47032f4..b248df7 100644
--- a/css/screen.css
+++ b/css/screen.css
@@ -94,6 +94,7 @@ img {
 }
 
 #main h1, #main h2, #main p, #main pre, #main ul, #main ol, #main dl, #supp ul, #supp h3, #supp ol, #supp p, form, .example, #supp #deck {
+	max-width: 66ch;
 	padding: 0 11.8%;
 }
 
diff --git a/items/2.1.2.html b/items/2.1.2.html
index 46e9bb3..b5567c1 100644
--- a/items/2.1.2.html
+++ b/items/2.1.2.html
@@ -11,7 +11,11 @@
 }
 
 #col3 {
-  width:33em;
+  width: 33em;
+}
+
+#col3 {
+  width: 66ch;
 }</code></pre>
 
 	<p>When typographers set the measure and text size for printed media, those dimensions are fixed and unchangeable in their physical manifestation. In this regard, the Web as viewed on-screen is fundamentally different to print because the medium is far more under the control of your readers. In particular, if your reader wishes to change the text size or the dimensions of the ‘page’, they can&nbsp;do.</p>