Button "Save" to Favorites
The user clicks the picture in the gallery, in the opened modal window an image appears in higher resolution. The Button "Save" to Favorites is in the upper right corner of the modal window and it adds the image to your favorites. If the card is saved, the text on the button changes to "Delete" when you click, this button removes the picture from the favorites list.

Favourites
All pictures added to the favorites list get into the block at the bottom of the page and it looks like a red heart, the number inside the icon shows the number of saved cards . You can add up to 12 cards to your favorites list. A gallery with saved images is opened by clicking on the heart icon.