how to make pre-roll and pre-landing (mobile)?

[T0pmaS]

Please write your recommendations.
Have issues now - how to set pre-landing to full size for a picture in mobile? Iframe?
Need text for action? Buttons - click to a site?
or all links will be added by widgets and players?

 

[violet]

css
{width: 100%;
margin: auto}

or i don't actually know what i'm talking about... lol

 

[Graybeard]

I think that is a function of the player.
If you want to join the pre-roll ad to the video permanently see FFmmpeg merge videos at DuckDuckGo