To create a poster frame:
You can add a poster frame to a video, which is the placeholder image your audience will see before the video starts playing. The poster frame is usually just a frame taken from the video itself.
Click the timeline to locate the desired part of the video.
From the Format tab, click the Poster Frame command. Select Current Frame from the menu that appears.
The current frame will become the poster frame.
If you want to use a picture from your computer, select Image from file.
To apply a video style:
Select the video, then click the Format tab on the Ribbon.
In the Video Styles group, click the More drop-down arrow to display available video styles.
Select the desired style.
The new style will be applied to the video.
To learn more about corrections, color adjustments, borders, shapes and effects, see our Formatting Pictures lesson.