diff --git a/src/Font.js b/src/Font.js
index 595adac..cd32f25 100644
--- a/src/Font.js
+++ b/src/Font.js
@@ -4,8 +4,7 @@
 import type {Font} from './parsing/font';
 
 const SAMPLE_TEXT = 'Hidden Text';
-const SMALL_IMAGE =
-    'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7';
+import {SMALL_IMAGE} from './Util';
 
 export class FontMetrics {
     _data: {};
diff --git a/src/NodeParser.js b/src/NodeParser.js
index 98c1665..661ce2b 100644
--- a/src/NodeParser.js
+++ b/src/NodeParser.js
@@ -46,6 +46,10 @@ const parseNodeTree = (
     imageLoader: ImageLoader,
     index: number
 ): void => {
+    if (__DEV__ && index > 50000) {
+        throw new Error(`Recursion error while parsing node tree`);
+    }
+
     for (let childNode = node.firstChild, nextNode; childNode; childNode = nextNode) {
         nextNode = childNode.nextSibling;
         const defaultView = childNode.ownerDocument.defaultView;
diff --git a/src/Util.js b/src/Util.js
index 4dac94d..217a2a1 100644
--- a/src/Util.js
+++ b/src/Util.js
@@ -4,13 +4,15 @@
 export const contains = (bit: number, value: number): boolean => (bit & value) !== 0;
 
 export const copyCSSStyles = (style: CSSStyleDeclaration, target: HTMLElement): void => {
-    if (style.cssText) {
-        target.style.cssText = style.cssText;
-    } else {
-        // Edge does not provide value for cssText
-        for (let i = style.length - 1; i >= 0; i--) {
-            const property = style.item(i);
+    // Edge does not provide value for cssText
+    for (let i = style.length - 1; i >= 0; i--) {
+        const property = style.item(i);
+        // Safari shows pseudoelements if content is set
+        if (property !== 'content') {
             target.style.setProperty(property, style.getPropertyValue(property));
         }
     }
 };
+
+export const SMALL_IMAGE =
+    'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7';