diff --git a/mithril.js b/mithril.js
index bb6edd23..e279e368 100644
--- a/mithril.js
+++ b/mithril.js
@@ -319,8 +319,8 @@ var renderService = function($window) {
 		var attrs = vnode.attrs
 		var is = attrs && attrs.is
 		var element = ns ?
-			is ? $doc.createElementNS(ns, tag, is) : $doc.createElementNS(ns, tag) :
-			is ? $doc.createElement(tag, is) : $doc.createElement(tag)
+			is ? $doc.createElementNS(ns, tag, {is: is}) : $doc.createElementNS(ns, tag) :
+			is ? $doc.createElement(tag, {is: is}) : $doc.createElement(tag)
 		vnode.dom = element
 		if (attrs != null) {
 			setAttrs(vnode, attrs, ns)
@@ -680,11 +680,11 @@ var renderService = function($window) {
 	}
 	//style
 	function updateStyle(element, old, style) {
-		if (old === style) element.cssText = "", old = null
-		if (style == null) element.cssText = ""
-		else if (typeof style === "string") element.cssText = style
+		if (old === style) element.style.cssText = "", old = null
+		if (style == null) element.style.cssText = ""
+		else if (typeof style === "string") element.style.cssText = style
 		else {
-			if (typeof old === "string") element.cssText = ""
+			if (typeof old === "string") element.style.cssText = ""
 			for (var key in style) {
 				element.style[key] = style[key]
 			}
diff --git a/mithril.min.js b/mithril.min.js
index 6e99b40e..30736343 100644
--- a/mithril.min.js
+++ b/mithril.min.js
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+c.domSize)}else z(a,c,null,!1),g(a,d(f,b,void 0),h)}function l(a){var c=a.domSize;if(null!=c||null==a.dom){var f=x.createDocumentFragment();if(0<c){for(a=a.dom;--c;)f.appendChild(a.nextSibling);f.insertBefore(a,f.firstChild)}return f}return a.dom}function m(a,c,f){for(;c<a.length;c++)if(null!=a[c]&&null!=a[c].dom)return a[c].dom;return f}function g(a,c,f){f&&f.parentNode?a.insertBefore(c,f):a.appendChild(c)}function p(a,c,f,b,g){for(;f<b;f++){var h=c[f];null!=h&&(h.skip?h.skip=void 0:z(a,h,g,!1))}}
+function z(a,c,f,b){if(!1===b){var g=0,d=0;b=function(){++d===g&&z(a,c,f,!0)};c.attrs&&c.attrs.onbeforeremove&&(g++,c.attrs.onbeforeremove.call(c.state,c,b));"string"!==typeof c.tag&&c.tag.onbeforeremove&&(g++,c.tag.onbeforeremove.call(c.state,c,b));if(0<g)return}h(c);if(c.dom){b=c.domSize||1;if(1<b)for(var p=c.dom;--b;)a.removeChild(p.nextSibling);null!=c.dom.parentNode&&a.removeChild(c.dom);null==f||null!=c.domSize||v(c.attrs)||"string"!==typeof c.tag||(f.pool?f.pool.push(c):f.pool=[c])}}function h(a){a.attrs&&
+a.attrs.onremove&&a.attrs.onremove.call(a.state,a);"string"!==typeof a.tag&&a.tag.onremove&&a.tag.onremove.call(a.state,a);if(null!=a.instance)h(a.instance);else if(a=a.children,a instanceof Array)for(var c=0;c<a.length;c++){var b=a[c];null!=b&&h(b)}}function A(a,c,b,g,h){var d=a.dom;if("key"!==c&&(b!==g||"value"===c||"checked"===c||"selectedIndex"===c||"selected"===c&&a.dom===x.activeElement||"object"===typeof g)&&"undefined"!==typeof g&&"oninit"!==c&&"oncreate"!==c&&"onupdate"!==c&&"onremove"!==
+c&&"onbeforeremove"!==c&&"onbeforeupdate"!==c){var p=c.indexOf(":");if(-1<p&&"xlink"===c.substr(0,p))d.setAttributeNS("http://www.w3.org/1999/xlink",c.slice(p+1),g);else if("o"===c[0]&&"n"===c[1]&&"function"===typeof g)B(a,c,g);else if("style"===c)if(a=b,a===g&&(d.style.cssText="",a=null),null==g)d.style.cssText="";else if("string"===typeof g)d.style.cssText=g;else{"string"===typeof a&&(d.style.cssText="");for(var e in g)d.style[e]=g[e];if(null!=a&&"string"!==typeof a)for(e in a)e in g||(d.style[e]=
+"")}else if(c in d&&"href"!==c&&"list"!==c&&"form"!==c&&void 0===h){if("input"!==a.tag||"value"!==c||a.dom.value!==g||a.dom!==x.activeElement)d[c]=g}else"boolean"===typeof g?g?d.setAttribute(c,""):d.removeAttribute(c):d.setAttribute("className"===c?"class":c,g)}}function v(a){return null!=a&&(a.oncreate||a.onupdate||a.onbeforeremove||a.onremove)}function B(a,c,g){var b=a.dom,d=function(a){var c=g.call(b,a);"function"===typeof E&&E.call(b,a);return c};if(c in b)b[c]=d;else{var h=c.slice(2);void 0===
+a.events&&(a.events={});null!=a.events[c]&&b.removeEventListener(h,a.events[c],!1);a.events[c]=d;b.addEventListener(h,a.events[c],!1)}}function n(a,c,b){"function"===typeof a.oninit&&a.oninit.call(c.state,c);"function"===typeof a.oncreate&&b.push(a.oncreate.bind(c.state,c))}function y(a,c,b,g){g?n(a,c,b):"function"===typeof a.onupdate&&b.push(a.onupdate.bind(c.state,c))}function C(a){if(a instanceof Array){for(var c=[],b=0;b<a.length;b++)c[b]=a[b];return c}if("object"===typeof a){c={};for(b in a)c[b]=
+a[b];return c}return a}var x=a.document,D=x.createDocumentFragment(),E;return{render:function(a,c){var b=[],g=x.activeElement;null==a.vnodes&&(a.textContent="");c instanceof Array||(c=[c]);k(a,a.vnodes,u.normalizeChildren(c),b,null,void 0);a.vnodes=c;for(var d=0;d<b.length;d++)b[d]();x.activeElement!==g&&g.focus()},setEventCallback:function(a){return E=a}}}(window),M=function(a){function b(a,e){if(e instanceof Array)for(var l=0;l<e.length;l++)b(a+"["+l+"]",e[l]);else if("[object Object]"===Object.prototype.toString.call(e))for(l in e)b(a+
 "["+l+"]",e[l]);else d.push(encodeURIComponent(a)+(null!=e&&""!==e?"="+encodeURIComponent(e):""))}if("[object Object]"!==Object.prototype.toString.call(a))return"";var d=[],e;for(e in a)b(e,a[e]);return d.join("&")},N=function(a){function b(a,b){if(null==b)return a;for(var d=a.match(/:[^\/]+/gi)||[],h=0;h<d.length;h++){var e=d[h].slice(1);null!=b[e]&&(a=a.replace(d[h],b[e]),delete b[e])}return a}function d(a,b){var d=M(b);if(""!==d){var h=0>a.indexOf("?")?"?":"&";a+=h+d}return a}function e(a){try{return""!==
 a?JSON.parse(a):null}catch(b){throw Error(a);}}function k(a){return a.responseText}function q(a,b){if("function"===typeof a)if(b instanceof Array)for(var d=0;d<b.length;d++)b[d]=new a(b[d]);else return new a(b);return b}var l=0,m;return{xhr:function(g){var p=C.stream();void 0!==g.initialValue&&p(g.initialValue);var l="boolean"===typeof g.useBody?g.useBody:"GET"!==g.method&&"TRACE"!==g.method;"function"!==typeof g.serialize&&(g.serialize="undefined"!==typeof FormData&&g.data instanceof FormData?function(a){return a}:
 JSON.stringify);"function"!==typeof g.deserialize&&(g.deserialize=e);"function"!==typeof g.extract&&(g.extract=k);g.url=b(g.url,g.data);l?g.data=g.serialize(g.data):g.url=d(g.url,g.data);var h=new a.XMLHttpRequest;h.open(g.method,g.url,"boolean"===typeof g.async?g.async:!0,"string"===typeof g.user?g.user:void 0,"string"===typeof g.password?g.password:void 0);g.serialize===JSON.stringify&&l&&h.setRequestHeader("Content-Type","application/json; charset=utf-8");g.deserialize===e&&h.setRequestHeader("Accept",
diff --git a/render/render.js b/render/render.js
index 09daa105..42b1df41 100644
--- a/render/render.js
+++ b/render/render.js
@@ -70,8 +70,8 @@ module.exports = function($window) {
 		var is = attrs && attrs.is
 
 		var element = ns ?
-			is ? $doc.createElementNS(ns, tag, is) : $doc.createElementNS(ns, tag) :
-			is ? $doc.createElement(tag, is) : $doc.createElement(tag)
+			is ? $doc.createElementNS(ns, tag, {is: is}) : $doc.createElementNS(ns, tag) :
+			is ? $doc.createElement(tag, {is: is}) : $doc.createElement(tag)
 		vnode.dom = element
 
 		if (attrs != null) {
@@ -441,11 +441,11 @@ module.exports = function($window) {
 
 	//style
 	function updateStyle(element, old, style) {
-		if (old === style) element.cssText = "", old = null
-		if (style == null) element.cssText = ""
-		else if (typeof style === "string") element.cssText = style
+		if (old === style) element.style.cssText = "", old = null
+		if (style == null) element.style.cssText = ""
+		else if (typeof style === "string") element.style.cssText = style
 		else {
-			if (typeof old === "string") element.cssText = ""
+			if (typeof old === "string") element.style.cssText = ""
 			for (var key in style) {
 				element.style[key] = style[key]
 			}
diff --git a/test-utils/domMock.js b/test-utils/domMock.js
index cde58a24..f32d49b6 100644
--- a/test-utils/domMock.js
+++ b/test-utils/domMock.js
@@ -75,11 +75,69 @@ module.exports = function() {
 	function removeAttribute(name) {
 		delete this.attributes[name]
 	}
+	var declListTokenizer = /;|"(?:\\.|[^"\n])*"|'(?:\\.|[^'\n])*'/g
+	/**
+	 * This will split a semicolon-separated CSS declaration list into an array of
+	 * individual declarations, ignoring semicolons in strings.
+	 *
+	 * Comments are also stripped.
+	 *
+	 * @param {string} declList
+	 * @return {string[]}
+	 */
+	function splitDeclList(declList) {
+	  var indices = [], res = [], match
+
+	  // remove comments, preserving comments in strings.
+	  declList = declList.replace(
+	  	/("(?:\\.|[^"\n])*"|'(?:\\.|[^'\n])*')|\/\*[\s\S]*?\*\//g,
+	  	function(m, str){
+	  	  return str || ''
+	  	}
+	  )
+	  /*eslint-disable no-cond-assign*/
+	  while (match = declListTokenizer.exec(declList)) {
+	  	if (match[0] === ";") indices.push(match.index)
+	  }
+	  /*eslint-enable no-cond-assign*/
+	  for (var i = indices.length; i--;){
+	    res.unshift(declList.slice(indices[i] + 1))
+	    declList = declList.slice(0, indices[i])
+	  }
+	  res.unshift(declList)
+	  return res
+	}
+
 	var activeElement
 	var $window = {
 		document: {
 			createElement: function(tag, is) {
+				var cssText = ""
 				var style = {}
+				Object.defineProperty(style, "cssText", {
+					get: function() {return cssText},
+					set: function (value) {
+						var buf = []
+						if (typeof value === "string") {
+							for (var key in style) style[key] = ""
+							var rules = splitDeclList(value)
+							for (var i = 0; i < rules.length; i++) {
+								var rule = rules[i]
+								var colonIndex = rule.indexOf(":")
+								if (colonIndex > -1) {
+									var rawKey = rule.slice(0, colonIndex).trim()
+									var key = rawKey.replace(/-\D/g, function(match) {return match[1].toUpperCase()})
+									var value = rule.slice(colonIndex + 1).trim()
+									if (key !== "cssText") {
+										style[key] = value
+										buf.push(rawKey + ": " + value + ";")
+									}
+								}
+							}
+							cssText = buf.join(" ")
+						}
+					}
+				})
 				var events = {}
 				var element = {
 					nodeType: 1,
@@ -140,21 +198,6 @@ module.exports = function() {
 						// https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/style#Setting_style
 						throw new Error("setting element.style is not portable")
 					},
-					set cssText(value) {
-						if (typeof value === "string") {
-							for (var key in style) style[key] = ""
-							var rules = value.split(";")
-							for (var i = 0; i < rules.length; i++) {
-								var rule = rules[i]
-								var colonIndex = rule.indexOf(":")
-								if (colonIndex > -1) {
-									var key = rule.slice(0, colonIndex).trim().replace(/-\D/g, function(match) {return match[1].toUpperCase()})
-									var value = rule.slice(colonIndex + 1).trim()
-									style[key] = value
-								}
-							}
-						}
-					},
 					get className() {
 						return this.attributes["class"] ? this.attributes["class"].nodeValue : ""
 					},
diff --git a/test-utils/tests/test-domMock.js b/test-utils/tests/test-domMock.js
index 2b589673..b08df230 100644
--- a/test-utils/tests/test-domMock.js
+++ b/test-utils/tests/test-domMock.js
@@ -474,20 +474,56 @@ o.spec("domMock", function() {
 
 			o(typeof div.style).equals("object")
 		})
-		o("setting cssText string works", function() {
+		o("setting style.cssText string works", function() {
 			var div = $document.createElement("div")
-			div.cssText = "background-color: red; border-bottom: 1px solid red;"
+			div.style.cssText = "background-color: red; border-bottom: 1px solid red;"
 
 			o(div.style.backgroundColor).equals("red")
 			o(div.style.borderBottom).equals("1px solid red")
 		})
-		o("removing via setting cssText string works", function() {
+		o("removing via setting style.cssText string works", function() {
 			var div = $document.createElement("div")
-			div.cssText = "background: red;"
-			div.cssText = ""
+			div.style.cssText = "background: red;"
+			div.style.cssText = ""
 
 			o(div.style.background).equals("")
 		})
+		o("the final semicolon is optional when setting style.cssText", function() {
+			var div = $document.createElement("div")
+			div.style.cssText = "background: red"
+
+			o(div.style.background).equals("red")
+			o(div.style.cssText).equals("background: red;")
+		})
+		o("'cssText' as a property name is ignored when setting style.cssText", function(){
+			var div = $document.createElement("div")
+			div.style.cssText = "cssText: red;"
+
+			o(div.style.cssText).equals("")
+		})
+		o("setting style.cssText that has a semi-colon in a strings", function(){
+			var div = $document.createElement("div")
+			div.style.cssText = "background: url(';'); font-family: \";\""
+
+			o(div.style.background).equals("url(';')")			
+			o(div.style.fontFamily).equals("\";\"")			
+			o(div.style.cssText).equals("background: url(';'); font-family: \";\";")
+		})
+		o("comments in style.cssText are stripped", function(){
+			var div = $document.createElement("div")
+			div.style.cssText = "/**/background/*:*/: /*>;)*/red/**/;/**/"
+
+			o(div.style.background).equals("red")
+			o(div.style.cssText).equals("background: red;")
+
+		})
+		o("comments in strings in style.cssText are preserved", function(){
+			var div = $document.createElement("div")
+			div.style.cssText = "background: url('/*foo*/')"
+
+			o(div.style.background).equals("url('/*foo*/')")
+
+		})
 		o("setting style throws", function () {
 			var err = false
 			try {