diff --git a/flippant.js b/flippant.js
index 31f8c8b..c52c127 100644
--- a/flippant.js
+++ b/flippant.js
@@ -60,23 +60,23 @@ function flip(flipper, content, type, class_name, timeout) {
 }
 
 function set_styles(back, front, position) {
-  back.style.position = position
-  back.style.top = front.offsetTop + "px"
-  back.style.left = front.offsetLeft + "px"
-  back.style['min-height'] = front.offsetHeight + "px"
-  back.style.width = front.offsetWidth + "px"
-  back.style["z-index"] = 9999
+  back.style.setProperty('position', position)
+  back.style.setProperty('top', front.offsetTop + "px")
+  back.style.setProperty('left', front.offsetLeft + "px")
+  back.style.setProperty('min-height', front.offsetHeight + "px")
+  back.style.setProperty('width', front.offsetWidth + "px")
+  back.style.setProperty('z-index', 9999)
 }
 
 function null_styles(back) {
-  back.style.top = null
-  back.style.left = null
-  back.style.height = null
-  back.style.width = null
+  back.style.removeProperty('top')
+  back.style.removeProperty('left')
+  back.style.removeProperty('height')
+  back.style.removeProperty('width')
 }
 
 function card_styles(back) {
-  back.style.height = 'auto'
+  back.style.setProperty('height', 'auto')
 }
 },{}]},{},[1])(1)
 });
diff --git a/flippant.min.js b/flippant.min.js
index de21cf9..5034730 100644
--- a/flippant.min.js
+++ b/flippant.min.js
@@ -1 +1 @@
-!function(e){if("function"==typeof bootstrap)bootstrap("flippant",e);else if("object"==typeof exports)module.exports=e();else if("function"==typeof define&&define.amd)define(e);else if("undefined"!=typeof ses){if(!ses.ok())return;ses.makeFlippant=e}else"undefined"!=typeof window?window.flippant=e():global.flippant=e()}(function(){var define,ses,bootstrap,module,exports;return function(e,t,n){function i(n,s){if(!t[n]){if(!e[n]){var o=typeof require=="function"&&require;if(!s&&o)return o(n,!0);if(r)return r(n,!0);throw new Error("Cannot find module '"+n+"'")}var u=t[n]={exports:{}};e[n][0].call(u.exports,function(t){var r=e[n][1][t];return i(r?r:t)},u,u.exports)}return t[n].exports}var r=typeof require=="function"&&require;for(var s=0;s<n.length;s++)i(n[s]);return i}({1:[function(require,module,exports){exports.flip=flip;function flip(flipper,content,type,class_name,timeout){var position,back,style_func;timeout=timeout||400;type=type||"card";if(type==="modal"){class_name=class_name||"flippant-modal-dark";position="fixed";style_func=null_styles}if(type==="card"){class_name=class_name||"flippant-modal-light";position="absolute";style_func=card_styles}back=document.createElement("div");document.body.appendChild(back);set_styles(back,flipper,position);back.innerHTML=content;flipper.classList.add("flippant");back.classList.add("flippant-back");back.classList.add(class_name);if(position=="absolute"){style_func(back)}else{window.setTimeout(function(){style_func(back)},0)}window.setTimeout(function(){back.classList.add("flipper");back.classList.add("flipped");flipper.classList.add("flipped")},0);back.addEventListener("close",close);back.close=close;function close(){set_styles(back,flipper,position);back.classList.remove("flipped");back.classList.remove("flipped");flipper.classList.remove("flipped");window.setTimeout(function(){back.classList.remove(class_name);document.body.removeChild(back)},timeout)}return back}function set_styles(back,front,position){back.style.position=position;back.style.top=front.offsetTop+"px";back.style.left=front.offsetLeft+"px";back.style["min-height"]=front.offsetHeight+"px";back.style.width=front.offsetWidth+"px";back.style["z-index"]=9999}function null_styles(back){back.style.top=null;back.style.left=null;back.style.height=null;back.style.width=null}function card_styles(back){back.style.height="auto"}},{}]},{},[1])(1)});
\ No newline at end of file
+(function(e){if("function"==typeof bootstrap)bootstrap("flippant",e);else if("object"==typeof exports)module.exports=e();else if("function"==typeof define&&define.amd)define(e);else if("undefined"!=typeof ses){if(!ses.ok())return;ses.makeFlippant=e}else"undefined"!=typeof window?window.flippant=e():global.flippant=e()})(function(){return function(e,t,o){function i(o,r){if(!t[o]){if(!e[o]){var s="function"==typeof require&&require;if(!r&&s)return s(o,!0);if(n)return n(o,!0);throw Error("Cannot find module '"+o+"'")}var f=t[o]={exports:{}};e[o][0].call(f.exports,function(t){var n=e[o][1][t];return i(n?n:t)},f,f.exports)}return t[o].exports}for(var n="function"==typeof require&&require,r=0;o.length>r;r++)i(o[r]);return i}({1:[function(e,t,o){function i(e,t,o,i,f){function p(){n(d,e,l),d.classList.remove("flipped"),d.classList.remove("flipped"),e.classList.remove("flipped"),window.setTimeout(function(){d.classList.remove(i),document.body.removeChild(d)},f)}var l,d,a;return f=f||400,o=o||"card","modal"===o&&(i=i||"flippant-modal-dark",l="fixed",a=r),"card"===o&&(i=i||"flippant-modal-light",l="absolute",a=s),d=document.createElement("div"),document.body.appendChild(d),n(d,e,l),d.innerHTML=t,e.classList.add("flippant"),d.classList.add("flippant-back"),d.classList.add(i),"absolute"==l?a(d):window.setTimeout(function(){a(d)},0),window.setTimeout(function(){d.classList.add("flipper"),d.classList.add("flipped"),e.classList.add("flipped")},0),d.addEventListener("close",p),d.close=p,d}function n(e,t,o){e.style.setProperty("position",o),e.style.setProperty("top",t.offsetTop+"px"),e.style.setProperty("left",t.offsetLeft+"px"),e.style.setProperty("min-height",t.offsetHeight+"px"),e.style.setProperty("width",t.offsetWidth+"px"),e.style.setProperty("z-index",9999)}function r(e){e.style.removeProperty("top"),e.style.removeProperty("left"),e.style.removeProperty("height"),e.style.removeProperty("width")}function s(e){e.style.setProperty("height","auto")}o.flip=i},{}]},{},[1])(1)});
\ No newline at end of file
diff --git a/lib/flip.js b/lib/flip.js
index 025aaf3..d18bb7c 100644
--- a/lib/flip.js
+++ b/lib/flip.js
@@ -58,21 +58,21 @@ function flip(flipper, content, type, class_name, timeout) {
 }
 
 function set_styles(back, front, position) {
-  back.style.position = position
-  back.style.top = front.offsetTop + "px"
-  back.style.left = front.offsetLeft + "px"
-  back.style['min-height'] = front.offsetHeight + "px"
-  back.style.width = front.offsetWidth + "px"
-  back.style["z-index"] = 9999
+  back.style.setProperty('position', position)
+  back.style.setProperty('top', front.offsetTop + "px")
+  back.style.setProperty('left', front.offsetLeft + "px")
+  back.style.setProperty('min-height', front.offsetHeight + "px")
+  back.style.setProperty('width', front.offsetWidth + "px")
+  back.style.setProperty('z-index', 9999)
 }
 
 function null_styles(back) {
-  back.style.top = null
-  back.style.left = null
-  back.style.height = null
-  back.style.width = null
+  back.style.removeProperty('top')
+  back.style.removeProperty('left')
+  back.style.removeProperty('height')
+  back.style.removeProperty('width')
 }
 
 function card_styles(back) {
-  back.style.height = 'auto'
+  back.style.setProperty('height', 'auto')
 }
\ No newline at end of file