How to add text and button to Front page header type VIDEO

How to add text and a button to Front page header type - video?
I would like it to be the same as the Header Slider version - Entering the text with the button.

Hello there,

Please follow this solution.

Let me know here if further questions come up.

Regards,
Kharis

Can you add a transparent black background (50%) to these subtitles?

Hello there,

Try adding this simple CSS code to Appearance > Customize > Additional CSS from dashboard.

    .slide-inner .subtitle {
      background-color: rgba(0,0,0,0.3);
    } 

Regards,
Kharis

You are Great. But If I would like to the background only to be around (not full size). what I have to do?