There's a great introduction to Bridge by the American Contract Bridge League (ACBL): https://www.acbl.org/learn/

All the card artwork used in this implementation goes back to the "English pattern", designed by Charles Goodall and Son in the first half of the 19th century, and is available in the public domain: https://commons.wikimedia.org/wiki/File:English_pattern_playing_cards_deck_PLUS.svg