<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
Result:
<div id="errlabel" align="left" class="ErrorStyle">&nbsp;
<logic:messagesPresent>
   <bean:message key="errors.header"/>
   <ul>
   error:
   <html:messages id="error">
      <li><bean:write name="error"/></li>
   </html:messages>
   </ul><hr />
   
</logic:messagesPresent>
</div>