[error.bg_order] CSS Validator Translation

Property:
  error.bg_order

Text in English:
  In the CSS3 
background definition, 'bg_position' must occur before / 'bg_size' if both are 
present

Language:
  ro

Translation:
In definirea fundalui din CSS3, 'bg_position' trebuie sa se afle inainte de  / 'bg_size' daca ambele sunt prezente

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