old_contents: //TODO: make as part of query syntax
  define('vendor', [], function () {
      var pfx = ["webkit", "moz", "MS", "o", ""];
      var len = pfx.length;
  
      function vendor(el, prop, value, vendorfyValue) {
          var p, v;
          for (var i = 0; i < len; i += 1) {
              p = vendorfy(prop, pfx[i]);
              if (vendorfyValue) {
                  p = prop;
                  v = vendorfyValue ? vendorDashfy(value, pfx[i]) : value;
              } else {
                  p = vendorfy(prop, pfx[i]);
                  v = value;
              }
              el.style[p] = v;
              //console.log(p, v);
          }
      }
  
      function vendorfy(prop, prefix) {
          return prefix && prefix + prop.charAt(0).toUpperCase() + prop.substr(1, prop.length) || prop;
      }
  
      function vendorDashfy(prop, prefix) {
          return (prefix && '-' + prefix + '-' || '') + prop;
      }
  
      return vendor;
  });
new_contents: //TODO: make as part of query syntax
  define('vendor', [], function () {
      var pfx = ["webkit", "moz", "MS", "o", ""];
      var len = pfx.length;
  
      function vendor(el, prop, value) {
          var p, v, vendorfyValue = prop === 'transition';// smart enough to know transition needs done differently
          for (var i = 0; i < len; i += 1) {
              p = vendorfy(prop, pfx[i]);
              if (vendorfyValue) {
                  p = prop;
                  v = vendorfyValue ? vendorDashfy(value, pfx[i]) : value;
              } else {
                  p = vendorfy(prop, pfx[i]);
                  v = value;
              }
              el.style[p] = v;
              //console.log(p, v);
          }
      }
  
      function vendorfy(prop, prefix) {
          return prefix && prefix + prop.charAt(0).toUpperCase() + prop.substr(1, prop.length) || prop;
      }
  
      function vendorDashfy(prop, prefix) {
          return (prefix && '-' + prefix + '-' || '') + prop;
      }
  
      return vendor;
  });
subject: fix vendor to be smart enough to handle 'transition' property.