text: (function() {
    var Declaration, Filter,
      __hasProp = {}.hasOwnProperty,
      __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
  
    Declaration = require('../declaration');
  
    Filter = (function(_super) {
      __extends(Filter, _super);
  
      function Filter() {
        return Filter.__super__.constructor.apply(this, arguments);
      }
  
      Filter.names = ['filter'];
  
      Filter.prototype.check = function(decl) {
        var v;
        v = decl.value;
        return v.toLowerCase().indexOf('alpha(') === -1 && v.indexOf('DXImageTransform.Microsoft') === -1 && v.indexOf('data:image/svg+xml') === -1;
      };
  
      return Filter;
  
    })(Declaration);
  
    module.exports = Filter;
  
  }).call(this);
  