place media query inside of class for better extending
place media query inside of class for better extending

maayan-myheritage/css-sprite,maayan-myheritage/css-sprite,sprity/sprity,itayco/css-sprite,sprity/sprity,shyndman/sprity,aslansky/css-sprite,shyndman/sprity,itayco/css-sprite,aslansky/css-sprite