diff --git a/core/src/main/resources/template/xhtml/controlheader.ftl b/core/src/main/resources/template/xhtml/controlheader.ftl
index eeebe9f7c..8b855b821 100644
--- a/core/src/main/resources/template/xhtml/controlheader.ftl
+++ b/core/src/main/resources/template/xhtml/controlheader.ftl
@@ -23,6 +23,6 @@
<#include "/${parameters.templateDir}/${parameters.expandTheme}/controlheader-core.ftl" />
- class="tdAlign${parameters.align?html}"
+ class="tdAlign-${parameters.align?html}"
#if>
><#t/>
diff --git a/core/src/main/resources/template/xhtml/styles.css b/core/src/main/resources/template/xhtml/styles.css
index 383578b1c..fe205179e 100644
--- a/core/src/main/resources/template/xhtml/styles.css
+++ b/core/src/main/resources/template/xhtml/styles.css
@@ -36,7 +36,7 @@
.tdErrorMessage {text-align:center; vertical-align:top;}
.formButton {text-align:right;}
-.tdAligncenter{text-align:center;}
-.tdAlignright{text-align:right;}
-.tdAlignleft{text-align:left;}
-.tdAlignjustify{text-align:justify;}
+.tdAlign-center{text-align:center;}
+.tdAlign-right{text-align:right;}
+.tdAlign-left{text-align:left;}
+.tdAlign-justify{text-align:justify;}
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