code: function isInitialValue(property, value) {
    const expanded = expandShorthandProperty(property, value, true, true);
    return Object.entries(expanded).every(([prop, val]) => {
      // eslint-disable-next-line no-param-reassign
      val = val.toLowerCase();
      if (isShorthandProperty(prop)) return true;
      if (val === 'initial') return true;
      const canonicalInitialValue = initialValue(prop).toLowerCase();
      if (val === canonicalInitialValue) return true;
      if (canonicalInitialValue === '0') { // all lengths
        if (/^0(px|mm|cm|in|pt|pc|q|mozmm)$/.test(val)) {
          return true;
        }
      }
      return false;
    });
  }
docs: Because of the `initial` keyword and shorthand expansion,
  there are many possible values that are equivalently identical
  with the initial value of a css property. This function
  returns true for all possible values that have the effect of
  setting a property to its initial value.
  
  @param {string} property the property to which  the value is assigned
  @param {string} value the value to check
  @return {boolean} whether the value is equivalent to the initial value.