Texas holdem rules are shown on the 'poker rules' page but here you will find them in a lot more detail. Links to websites that offer texas holdem rules.

3 Types of Hold'em Games
Pot Limit Hold'em (A player can bet what is in the pot.)
No Limit Hold'em (A player can bet all of his/her chips at any time.)
Limit Hold'em (A specific betting limit in each game and on each round)

Texas Holdem Rules - 1st Round
A fresh table starts off with the 1st person sitting on the table becoming the dealer and the next player posting the small blind.

A new game on a active table starts with the button moving clockwise to the next player. The player next to the button/dealer is required to place the small blind. The small blind is equal to half the lower stake. This is a guideline for determining the blinds and not a strict rule.

At most poker rooms the small blind is rounded down to the nearest dollar. For example, at $5/$10 Hold'em per the formula the small blind should be $2.5. Instead, it is rounded down to the lower dollar, so the small blind would post $2. However, as it is just a guideline, the amount of small blind could be set differently at the time of setting up the table... [More on 1st Round Rules]

Texas Holdem Rules - 2nd Round
After the flop and in each subsequent betting round, the first active player left of the button is first to act. The second betting round also limits the value of bets and raises to the lower limit of the stake structure. So in a $10/$20 value of each bet is $10 for the second round.

When we say the bets are limited to $10, it refers to: a Bet (single bet) of the value of $10, so when a user places "BET" then it is $10, "RAISE" would be $20 -- includes one additional bet and a call on the previous bet placed by a player.

Bets can be placed, by playing any of the following options -- Bet, Call and Raise. These options are available to each player depending on the action taken by the previous player.

The first player placing the bet would get the Bet option (the player left to the Button). Other players will get the Call and Raise options only. After this the fourth community card is dealt out -- this is known as the Turn.

Texas Holdem Rules - 3rd Round
The third betting round starts again with the player left to the button, and bets and raises are limited to the upper limit of the stake structure ($10/$20 game, $20 would be the upper stake).

When we say the bets are limited to $20, it refers to: a Bet (single bet) of the value of $20, so when a user places "BET" then it is $20, "RAISE" would be $40 -- includes one additional bet and a call on the previous bet placed by a player.

Bets can be placed by playing any of the following options -- Bet, Call and Raise. Combinations of these options are available to the player depending on the action taken by the previous player. The first player placing the bet would get the Bet option (the player left to the Button). After this the fifth community card is dealt out -- this is known as the River.

Texas Holdem Rules - 4th Round
The fourth and final betting round starts again with the player left to the button, and bets and raises are limited to the upper limit of the stake structure ($10/$20 game, $20 would be the upper stake).