What are the rules of uno?

UNO is a great and easy to learn card game and gives endless hours of gameplay. The game exists out of 108 cards all having a different ability, each player is dealt 7 cards with the remaining ones placed upside down on the surface. The first player has to match the card in the discard pile which is created by turning over an upside down card. If the card is red, the player has to throw down a red one and if it's blue, the player has to thrown down a blue one unless it matches the number on the card. When one has one card left, he/she must yell UNO, or he will lose automatically. Once a player has no cards left, he/she won.