checkGoal.js

var getCssRule = function (className, prop) {
      var doc = HtmlacademyTask.getPreviewDocument();

      for (var i = 0; i < doc.styleSheets.length; i++) {
        var sheet = doc.styleSheets[i];

        if (sheet.href) {
          continue;
        }

        var classes = sheet.rules || sheet.cssRules;
        var rule;

        for (var x = 0; x < classes.length; x++) {
          if (classes[x].selectorText == className) {
            if (prop != null) {
              (classes[x].cssText) ? rule = classes[x].style[prop]: rule = classes[x].style[prop].cssText;
            } else {
              (classes[x].cssText) ? rule = classes[x].cssText: rule = classes[x].style.cssText;
            }

            return rule;
          }
        }
      }

      return false;
    };
    var rule = getCssRule('.main-menu li li a:hover');
    var checkGoal2 = function() {
        var result = false
        var rule = this.getCssRule('.main-menu li li a:hover');
        if (rule && rule.indexOf('background: none') > -1 && rule.indexOf('text-decoration: underline') > -1) {
            result = true;
        }
        return result;
        
    }
    checkGoal2();