Limit minimal video widget size to 336x189px

css/styles.css

@@ -34,6 +34,11 @@ radio {
   border-radius: 0px;
 }
 
+.videowidget {
+  min-width: 336px;
+  min-height: 189px;
+}
+
 .tvmode popover box {
   text-shadow: none;
   font-size: 21px;

src/playerBase.js

@@ -29,8 +29,7 @@ class ClapperPlayerBase extends GstClapper.Clapper
         });
 
         this.widget = gtk4plugin.video_sink.widget;
-        this.widget.vexpand = true;
-        this.widget.hexpand = true;
+        this.widget.add_css_class('videowidget');
 
         this.state = GstClapper.ClapperState.STOPPED;
         this.visualization_enabled = false;