历史版本名称过长导致折行

app/views/attachments/_attachment_history_download.html.erb

@@ -13,7 +13,7 @@
     <span class="attachment">
       <%= link_to truncate(@attachment.filename,length: 35, omission: '...'),
                   download_named_attachment_path(@attachment.id, @attachment.filename),
-                  :title => @attachment.filename+"\n"+@attachment.description.to_s, :style => "overflow: hidden; white-space: nowrap;text-overflow: ellipsis; max-width:300px;",:class => "linkBlue f14 fb link_file_a2 fl"  %>
+                  :title => @attachment.filename+"\n"+@attachment.description.to_s, :style => "overflow: hidden; white-space: nowrap;text-overflow: ellipsis; max-width:280px;",:class => "linkBlue f14 fb link_file_a2 fl"  %>
     </span>
   <span class="fr">版本号：当前</span>
   <div class="cl"></div>