sale tax for property gifted from parents

[Henry Li]

Let's say my parents bought the house 200k many years ago, the house is worth 300k today. If they sell the house now, it would be tax free because they live there for years and the gain doesn't exceed the limit.

The question is, if they gift the house to me today while the house is worth 300k. And a couple years later, let's say the house worth 320k, how much capital gain tax do I have to pay?   

thank you = )