how to center align a video ?

[berlin2123]

both align or class not work for videos

:class: align-center
:align: center

[berlin2123]

Temporarily solved by adding custom.css

add lines to custom.css:

/* center video */
video.align-center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

add a class video:

.. video:: _static/video.mp4
    :width: 600
    :class: align-center

[12rambau]

"align" is a image directive keyword and his not supported by the video one. The full list of supported options is decribed in the documentation:
https://sphinxcontrib-video.readthedocs.io/en/latest/quickstart.html#options

If you want to add an extra one I'll be happy to review a PR.

[berlin2123]

No idea on how to achieve alignment. The way to change CSS seems to be a matter of theme, not implemented here.