Wedding Photography Client Gallery

Hi, looking for some suggestions on how to display clients photos in private gallery. I know I can set up a non linked site with password etc.

What I would like to do is have a button on the private page that links to slide show of photos that fill the width of the browser both desktop and mobile. I know how to create all of it with the exception of the full browser width. 
 

Any thoughts and suggestions greatly appreciated. 

watching with interest

Full browser depends on a number of things, first is, what template are we talking about? One already in use or starting with a new one? The request is not all that hard to do depending on the template.

using SS 7.1

I can not see a work around for a private client gallery where clients and sign in and vire images (of their wedding) then ultimately share the sign in details with other family members to purchase images. 

I am currently looking into private members areas. I am currently starting with pixiset client gallery and will likely link back to my SS site---painful work around 

SS now has member areas, have you looked at that function?

https://www.squarespace.com/ecommerce/membership-sites

i am looking at that currently. If for instance I have four gallery's I want to make private for four clients do I need to create four separate private members areas? I dont want one password to be able to open the separate image gallery's 

Pages can have their own individual passwords already as opposed to the whole site. That works without the member areas option. You can create a gallery page or page with gallery block(s) for any client with its own unique simple password.

Will try that... thank you