Follow these steps to add captions to your video:
1
Click on the Captions menu located on the left side of the screen.
2
Explore the variety of caption styles available. Hover over any subtitle
style to preview its animation, then click on the style to apply it to your
video. 
3
Apply the chosen style and play your video to see it in action.
4
To customize the subtitle, click on Edit style.
5
Access a variety of customization options: 
-
Adjust the text color, text size, caption background, text outline and even
add a shadow effect to the text.
-
Adjust the text color, text size, caption background, text outline and even
add a shadow effect to the text.6
Explore additional properties specific to your caption style. For example,
with karaoke style, you can edit the background box color.
7
Preview your subtitles by hovering over the preview area or playing the
video. If you’re satisfied with the style and want to reuse it, click Save
Style. 
8
After saving, your new style appears under My Styles. You can now
directly apply any of your saved styles to any of your videos.