I want to customise import view by extending the ImportView template of base_import module. 

I referred the template extending and also referred this  https://stackoverflow.com/questions/42075393/template-inheritance-of-the-client-side-in-odoo-10 link. But it didn't work for me. 

Below is my extending code:

<?xml version="1.0" encoding="UTF-8"?>
<odoo>
    <data>
  <template>
   <t t-name="ImportView" t-extend="ImportView">
       <t t-jquery=".oe_import_box" t-operation="after"> 
       <!--- I tried jquery selector line as class="div.oe_import_box" also, but it din't work -->
     <div class=".oe_import_box col-sm-9">  
               <div class="col-sm-12">
                   <p>Select a CSV or Excel file to import from FTP. <a href="https://www.odoo.com/documentation/user/10.0/general/base_import/import_faq.html" target="new" class="pull-right">Help</a></p>
               </div>
              </div>
         </t>
     </t>
  </template>
 </data>
</odoo>

May be I am making mistake in writing the jquery selector path. Could someone help me regarding this?