diff --git a/package.json b/package.json
index 70ca82a..e08ff7c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ng2-fittext",
-  "version": "1.0.20",
+  "version": "1.0.21",
   "description": "An Angular2 directive for autoscale the font size of an element to fit an upper level container.",
   "main": "index.js",
   "scripts": {
diff --git a/src/ng2fittext.directive.ts b/src/ng2fittext.directive.ts
index 1ed4ed4..b3fb0e7 100644
--- a/src/ng2fittext.directive.ts
+++ b/src/ng2fittext.directive.ts
@@ -57,7 +57,7 @@ export class Ng2FittextDirective implements AfterViewInit, OnInit {
 
   ngOnInit() {
     if (this.useMaxFontSize) {
-      this.maxFontSize = parseInt(window.getComputedStyle(this.el.nativeElement).fontSize, null);
+      this.maxFontSize = parseInt(window.getComputedStyle(this.container ? this.container : this.el.nativeElement.parentElement).fontSize, null);
     }
 
     if (this.fittext) {
@@ -77,7 +77,7 @@ export class Ng2FittextDirective implements AfterViewInit, OnInit {
       } else {
         if (this.useMaxFontSize) {
           if(this.fontSize > this.maxFontSize) {
-              this.maxFontSize = parseInt(window.getComputedStyle(this.el.nativeElement).fontSize, null);
+              this.maxFontSize = parseInt(window.getComputedStyle(this.container ? this.container : this.el.nativeElement.parentElement).fontSize, null);
               this.setFontSize(this.maxFontSize);
           }
         }