--- a/model/ProvenanceModel.html	Tue Oct 11 13:24:06 2011 +0100
+++ b/model/ProvenanceModel.html	Tue Oct 11 13:30:29 2011 +0100
@@ -395,7 +395,7 @@
 <p>
 The following ER diagram provides a high level overview of the <strong>structure of PROV-DM assertions</strong>. Examples of provenance assertions that conform to this schema are provided in the next section (note: cardinality constraints on the associations are 0..* unless otherwise stated)</p>
 
-  <img src="overview.png" style="align=center;" alt="PROV-DM overview"/>
+  <img src="overview.png" alt="PROV-DM overview"/>
 
 <p>The model includes the following elements:</p>
 <ul>
@@ -2383,7 +2383,7 @@
 </pre>
 <p>The corresponding graphical representation is shown below.</p>
 
-<img src="collections.png" style="align=center;" alt="collections"/>
+<img src="collections.png" alt="collections"/>
 
 
 <p>  With these assertions:</p>