Question about this forum

i I wish to add a specific files download (such as invoice or info documents), specific and different for each user login how i can do that? should i will create a single database for each users? someone can help me?

My non photo/video embeds no longer adjust to the width of mobile screens on my forum. I've tested this on Android phones. Want to see if this is a problem with just my site. <iframe width="100%" height="166" scrolling="no" frameborder="no" allow="autoplay" src="https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/33710714&color=%23ff5500&auto_play=false&hide_related=false&show_comments=true&show_user=true&show_reposts=false&show_teaser=true"></iframe>

hi, there is a white strip under my product box on the products page which i cant get rid of, it seems to be part of the product box but i cant make it smaller or change the colour to fit the background! It looks pretty bad as the background is not white. can anyone help!?