WooCommerce Product image Hover

I build a custom theme for cloth store and i installed plugin Woo-commerce.But on shop page, When Hover Woo-commerce Product image i need 2 button, buy now and product details?

here is Default product view by Woo-Commerce in my custom theme------

But i want like this when hover------------

so please help me someone? i could not find any way on google.Thx

via Chebli Mohamed