Starting next, consumer electronic e-retailers will be required to display the applicable label or icon “clearly and conspicuously and in close proximity to the covered product’s price” so that consumers can view them without excessive scrolling or clicking.
The amendments also specify that if consumers have to click an icon to view the label, e-retail sites cannot require them to first save a file to their computer to view the information. E-retailers are not required to include labels or icons on product category pages.
This block comes from an article summarizing the directive, if you want to look into it's details look up directive 2010/30/UE . You can also read about it here http://www.come-on-labels.eu
As far as I understand one can design product page in such way, that energy efficieny graphic label will be shown in a tooltip once user hovers over text attribute?
Edit: After further analyzing, the complete energy label can be displayed on hover / on click of the energy label emblem The issue though -
according to law, the font size of text within the energy label has to be exact same size as font size used for pricing - which in our case is pretty big. This makes the emblem look awful.