What does "it’s nice of you" mean in English for Spanish?

In English for Spanish, "it’s nice of you" means:

es amable de tu parte

Listen to "it’s nice of you": (If you have an HTML5 enabled browser, you can listen to the native audio below)

This is a phrase that is used in the GamesForLanguage English for Spanish Language Game in the following scenes:

• English for Spanish 3, Level 1, Scene 6