# The Ecodesign for Energy-Related Products and Energy Information Regulations 2021, Paragraph 3


(1) If nested display is used, the label must appear on the first mouse click, mouse roll-over or tactile screen expansion on the image.
(2) The image used for accessing the label in the case of a nested display, as indicated in Figure 2, must—
(a) be an arrow in the colour corresponding to the energy efficiency class of the product on the label;
(b) indicate the energy efficiency class of the product on the arrow in white, Calibri Bold and in—
(i) if the price is shown, a font size equivalent to that of the price; or
(ii) in all other cases, a font size that is clearly visible and legible;
(c) have the range of available energy efficiency classes in 100 per cent black;
(d) be of such a size that the arrow is clearly visible and legible, and in one of the following two formats shown in Figure 2; and
(e) position the letter in the energy efficiency class arrow in the centre of the rectangular part of the arrow, with a visible border in 100 per cent black placed around the arrow and the letter of the energy efficiency class.

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Source: https://www.legislation.gov.uk/ukdsi/2021/9780348222920/schedule/27/paragraph/3 (the official version)
Page: https://openlegislation.uk/draft-ecodesign-for-energy-related-products-and-energy-information-regulations-2021/schedule-27/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.