class Sass::Tree::PropNode

def value_needs_parens?

properly as division.
Returns whether \{#value} neesd parentheses in order to be parsed 
def value_needs_parens?
  return false if custom_property?
  root = value.first
  root.is_a?(Sass::Script::Tree::Operation) &&
    root.operator == :div &&
    root.operand1.is_a?(Sass::Script::Tree::Literal) &&
    root.operand1.value.is_a?(Sass::Script::Value::Number) &&
    root.operand1.value.original.nil? &&
    root.operand2.is_a?(Sass::Script::Tree::Literal) &&
    root.operand2.value.is_a?(Sass::Script::Value::Number) &&
    root.operand2.value.original.nil?
end