Apply style on div {if $cart_qties == 0}

[seog]

Hi

 

I am trying adding style to block cart div only when there are no products as follow:

 

<div class="shopping_cart"{if $cart_qties == 0} style="box-shadow:none"{/if}>

 

The issue is that it work only when I reload page, then understand that I should add this mod also in ajax-cart.js or blockcart-json.tpl

 

I know this because I had to modify these files for make to work the truncate lenght in product name without wait to reload page

 

Does anyone know where I should repeat the code {if $cart_qties == 0} style="box-shadow:none"{/if} in ajax-cart.js?

 

Note: This mod don´t is possible to make in blockart.css because I added a box-shadow: 1px xxxx

 

best regards