Modify size of product-field-display box

[aLioneL]

Bonjour a Toutes et a Tous ;-)

My Joomla and my VM are the lastest : 3.0.9 & 3.4.2
I would like to modify the size of "product-field-display" to increase it
BUT I didn't find how to do it

components/com_virtuemart/sublayouts/customfields.php
<div class="product-field-display"><?php echo $field->display ?></div>
$field->display creates the drop down box but I can't find where this function is run to modify the dropdown size

Thanks by advance for your help
LioneL

[Studio 42]

Lionel. Inspectez le code et modifiez le CSS.
Have you try to modify the CSS rules?

[kishoreonwork]

Please provide a link of live page so that a exact css rule can be provided .

Thanks
Kishore