add shadow to prodcts thumbnails

Hi there,
I’m a beginner with WordPress.
I’m using flatsome theme and the Woocommerce plugin.

In products page I’d like to add shadow on each product’s thumbnail. and i want all product thumbnail to be showen without crop. i used this to show products [products category=”ceiling lamp”
columns=”4″ rows=”8″
paginate=”true”]

Would be grateful for any help with this.
Thanks!

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