Update style.css

style.css

@@ -123,6 +123,9 @@ h1 {
 #output_image_container{
   overflow: hidden !important;
 }
+#output_image > button > div{
+  height:100% !important;
+}
 #output_image_container .styler{
   background-color: #121212 !important;
 }