Best Call-to-Action Placements for Desktop and Mobile


The best Call-to-Action placement depends on your webinar layout, the attendee’s device, and whether they are viewing the webinar in portrait, landscape, or full-screen mode.

For most webinars, On Video is a reliable default because it keeps the CTA visible across watch page templates. You should still test the CTA on desktop and mobile before sharing your webinar with attendees.



On Video


On Video is the recommended default for most webinars. With this placement, the CTA appears in the bottom-right area of the video on desktop and mobile. It also works across StealthSeminar watch page templates.


Use this placement when you want the CTA to remain visible while attendees watch the video.


Top Right or Top Side Right


On the Simple watch page template, Top Right may be a good alternative.
  • On desktop, the CTA appears near the top-right side of the video.
  • On mobile in portrait mode, the CTA appears above the video.
  • On mobile in landscape mode, the CTA appears over the video.

Some accounts may display this option as Top Side Right instead of Top Right.

Use Top Right when you want the CTA to appear above the video on mobile portrait screens. Use On Video when you want a more consistent placement across templates and screen orientations.

It is good practice to preview the call to action after you have selected the position.


How each CTA position works.


The CTA location is selected when you create or edit the CTA in the webinar editor.

CTA position Desktop Mobile portrait Mobile landscape
On Video Bottom-right area of the video On the video On the video
Top Right or Top Side Right Top-right side of the video Above the video On the video
Beneath Video Below the video Below the video On the video
Bottom Side Right Bottom-right side of the video Bottom-right side of the video On the video





Mobile landscape mode may place CTAs over the video even when another location was selected. This is normal behavior.



Best practices for desktop and mobile


Keep the CTA easy to notice without covering too much of the webinar video.

  • Use a short message that clearly explains what attendees should do.
  • Avoid large images or long blocks of text, especially when the CTA is placed on the video.
  • Use an image-based button when appropriate. A recommended button image size is approximately 300 × 70 pixels.
  • Test buttons and linked images to confirm that the destination URL works.
  • If multiple CTAs are active at the same time, check how they stack on smaller screens and in full-screen mode.
  • Avoid adding several large CTAs at once because they can cover important video content. 

CTAs can appear on supported desktop and mobile devices, including full-screen mode. Their exact position may change based on the watch page template, screen size, device orientation, full-screen state, and selected CTA location.


Test your CTA placement


Previewing the CTA is helpful, but a content preview may not reproduce every device, orientation, timing, or attendee-session condition. Complete a real attendee test before publishing your webinar.

  1. Save the CTA in the webinar editor.
  2. Use the webinar preview to review the CTA content and destination link.
  3. Register for the webinar using an email alias or a test email address.
  4. Open the webinar on a desktop computer.
  5. Test the webinar on a mobile device in portrait mode.
  6. Rotate the mobile device and test landscape mode.
  7. Test the CTA in full-screen mode.
  8. Confirm that the CTA appears at the intended time and that the link works.

For live webinars, CTAs can be turned on and off manually from the Live Webinar Console.


Common Questions


Which CTA position should I use?


Start with On Video if you want a reliable placement across watch page templates and devices.

Use Top Right or Top Side Right if you want the CTA to appear above the video on mobile portrait screens.


Why does my CTA appear over the video on mobile?


Mobile landscape mode places CTAs over the video as part of the responsive watch page behavior. This can also occur in full-screen mode.


Can I place the CTA below the video?


Yes. Select Beneath Video. The CTA appears below the video on desktop and mobile portrait mode, but it appears over the video in mobile landscape mode.

Will my CTA appear in full-screen mode?


Yes. CTAs continue to display in full-screen mode. If multiple CTAs are active, they may stack, so avoid using oversized CTA images or long text blocks.

Why does the CTA position look different in the preview?


The final position can change based on the watch page template, screen size, device orientation, and full-screen state. Complete a real attendee test on desktop and mobile before publishing.


How large should an image CTA be?


A recommended button image size is approximately 300 × 70 pixels. Smaller, focused CTAs are generally easier to view on mobile devices.
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