Using the WordPress Plugin

How to fix some layout and CSS issues with our WordPress plugin

Updated October 5, 2026

A simple fix for issues with video sizing and flashing while a Vimeo video is converted

This how-to might solve the following for you:

  • Odd video sizing

  • Fullscreen issues

  • Flashing while a Vimeo video is converting to SmartVideo

 

Heads up: The new player sizes fluid videos and embeds with set dimensions before it first draws. To use it, set Player > Version to Stable in SmartVideo > Settings; the plugin starts on Legacy. If you added layout workarounds previously, try removing them first and check whether the issue remains. If it does, try the iFrame player toggle below.

In your WordPress dashboard, open SmartVideo and select the Settings tab.

In the Advanced section, turn off iFrame player. Settings save automatically.

The clips show an older plugin screen with Alternate layout method and Save settings; the current control is iFrame player, and there is no save button.

Now, check to see if your problems have been solved.

If they have… nice! 😎

If they haven’t… let us know: email support@swarmify.com or use the message widget in the corner of this page.

Plugin not behaving?

Tell us what you’re seeing in WordPress and we’ll help you sort it out.