Slideshow:Full Caption Alignment

Hi there, 

I am using a Gallery Slideshow: Full Bleed on my site, with the captions turned on. The captions when turned on are centre aligned; however I am wanting the captions to align to the right hand margin. (marked in red where I want it to go)

Site pw: 1234

Does anyone have any advice on how to change the text alignment? 

 

Can you share your website URL?

https://primrose-whale-2sxx.squarespace.com/

I have managed to get the caption to move to the right using this code
 

#collection-66ba93fa4037f741b6335bf5 figcaption.gallery-caption.gallery-caption-fullscreen-slideshow {
    max-width: 100% !important;
}
#collection-66ba93fa4037f741b6335bf5 figcaption * {
    text-align: right !important;
}

However the caption is now on the right hand bleed edge, not inline with the margin. Any help on how to bring it into the margin would be much appreciated!

Add this:

.gallery-caption-wrapper {
  margin: auto 4vw;
}

Thank you so much!