(function(MktoForms2) {
  if (!MktoForms2) return;

  var formElSelectors = ['form.mktoForm', 'form.mktoForm [class^=mkto]'];
  var gutterSelectors = ['.mktoOffset', '.mktoClear', '.mktoGutter'];
  var styleSheetSelectors = [
    'link#mktoForms2BaseStyle',
    'link#mktoForms2ThemeStyle',
    'form.mktoForm>style'
  ];

  function modifyElements(selectorsArr, callback) {
    document.querySelectorAll(selectorsArr.join(',')).forEach(function(el) {
      callback(el);
    });
  }

  function removeElement(element) {
    element.parentNode.removeChild(element);
  }

  function removeInlineStyle(element) {
    element.removeAttribute('style');
  }

  function removeStyleSheet(stylesheet) {
    stylesheet.disabled = true;
    removeElement(stylesheet);
  }

  MktoForms2.onFormRender(function() {
    modifyElements(styleSheetSelectors, removeStyleSheet);
    modifyElements(formElSelectors, removeInlineStyle);
    modifyElements(gutterSelectors, removeElement);
  });
})(window.MktoForms2);