找到template/aritcle/aritlc.html

<TD height="350" valign="top"><BR>
<div id="NewaspContentLabel" style="display:block;padding:0px 10px;" class="ContentFont"><FONT id=font_word style="FONT-SIZE: 14px; FONT-FAMILY: 宋体, Verdana, Arial, Helvetica, sans-serif">
<div id="NewsContentLabel" class="NewsContent"></div>
<div id="Message" class="Message">{$GetArticleContent}</div>

红色字部分修改为

<TD height="100%" valign="top"><BR>
<div id="NewaspContentLabel" style="display:block;padding:0px 10px;" class="ContentFont"><FONT id=font_word style="FONT-SIZE: 14px; FONT-FAMILY: 宋体, Verdana, Arial, Helvetica, sans-serif">
<div id="NewsContentLabel" class="NewsContent"></div>
<div id="Message" class="Message">{$GetArticleContent}</div>