diff --git a/emu.js b/emu.js
index 823cf3c..933e8a8 100644
--- a/emu.js
+++ b/emu.js
@@ -266,7 +266,7 @@ class Emulator {
 					return '<span id="cursor">' + ec + '</span>';
 				else
 					return ec;
-			}).join('');
+			}).join('').trimEnd();
 		}).join('\n');
 		this.output.innerHTML = html;
 	}
diff --git a/styles.css b/styles.css
index 8946c4c..dfc6e36 100644
--- a/styles.css
+++ b/styles.css
@@ -14,6 +14,7 @@ body {
 }
 
 #output {
+	width: 80ch;
 	margin: 1.5em auto;
 	white-space: pre;
 }