diff --git a/src/calibre/ebooks/oeb/display/test-cfi/index.html b/src/calibre/ebooks/oeb/display/test-cfi/index.html
index 618fdea15f..53d84de0c7 100644
--- a/src/calibre/ebooks/oeb/display/test-cfi/index.html
+++ b/src/calibre/ebooks/oeb/display/test-cfi/index.html
@@ -71,7 +71,8 @@
                 righteous indignation and dislike men who are so beguiled and
                 demoralized by the charms of pleasure of the moment, so blinded
                 by desire, that they cannot foresee
-                <img src="marker.png" width="150" height="200" alt="Test Image" style="border: solid 1px black; display:block"/>
+                <img src="marker.png" width="150" height="200" alt="Test Image"
+                style="border: solid 1px black; display:block"/>
 
             </div>
             <h2>Some entities and comments</h2>
@@ -103,7 +104,8 @@
             they cannot foresee</p>
 
             <h2>Lots of collapsed whitespace</h2>
-            <p>Try clicking the A character after the colon:             A suffix</p>
+            <p>Try clicking the A character after the colon:             
+            A suffix</p>
 
             <h2>Lots of nested/sibling tags</h2>
             <p>A <span>bunch of <span>nested<span> and</span> <span>sibling</span>
@@ -111,8 +113,10 @@
                 over this paragraph to test<span> things.</span></p>
 
             <h2>Images</h2>
-            <p>Try clicking at different points along the image. Also try changing the magnification and then hitting reload.</p>
-            <img src="marker.png" width="150" height="200" alt="Test Image" style="border: solid 1px black"/>
+            <p>Try clicking at different points along the image. Also try
+            changing the magnification and then hitting reload.</p>
+            <img src="marker.png" width="150" height="200" alt="Test Image"
+            style="border: solid 1px black"/>
 
             <h2>Video</h2>
             <p>Try clicking on this video while it is playing. The page should
@@ -120,10 +124,12 @@
             clicked.  To play the video you should right click on it and select
             play (otherwise the click will cause a reload). 
             </p>
-            <video width="320" height="240" controls="controls" preload="auto" src="birds.webm" type="video/webm" />
+            <video width="320" height="240" controls="controls" preload="auto"
+            src="birds.webm" type="video/webm" />
 
         </div>
-        <img id="marker" style="position: absolute; display:none; z-index:10" src="marker.png" alt="Marker" />
+        <img id="marker" style="position: absolute; display:none; z-index:10"
+        src="marker.png" alt="Marker" />
     </body>
 </html>