[Plugin: Viper’s Video Quicktags] Lots of whitespace after the plugin

When I place the plugin anywhere on a page, there is an equal amount of whitespace following it before the next part of the content is shown. An example is on https://inaforjudge.com.lh1.net. Note the gap between the plugin and the additional content several inches below. I’ve tried everything including going thru all the code and can’t find what might be causing this.