Legal analysis: legal holidays should be taken normally. If there is no holiday, the salary should be paid back according to the regulations.
Legal basis: Labor Law of the People's Republic of China
Article 41 The employing unit shall arrange employees' holidays according to law during the following festivals: (1) New Year's Day; (2) Spring Festival; (3) International Labor Day; (4) National Day; (five) other holidays as prescribed by laws and regulations.
Article 91 Where an employing unit infringes upon the legitimate rights and interests of laborers in any of the following circumstances, the labor administrative department shall order it to pay the wages and economic compensation to the laborers, and may also order it to pay compensation: (1) Deducting or delaying the wages of laborers without reason; (2) Refusing to pay workers wages for extended working hours; (3) Paying workers' wages below the local minimum wage standard; (4) Failing to give economic compensation to the laborer in accordance with the provisions of this Law after the termination of the labor contract.