Update style.css

style.css

@@ -139,6 +139,10 @@ h1 {
 #input_image > div.image-container > div > button {
   display:none;
 }
+canvas{
+  max-width: none !important;
+  max-height: none !important;
+}
 #output_image > div.icon-buttons{
   display:none;
 }