How do I remove the sidebar/post, my title, and footer from pages?

Replies: 0

I was able to remove the header using CSS but I have no idea how to remove the links and things on the side/the title of my page as well as the footer. I’m try to just make a barebones splash page, so I need to get rid of these things.

Currently, here’s the CSS I have on the page:
<style>
.page-id-15 .site-header,
.page-id-15 .site-footer {
display: none;
}
</style>

Thanks for your help.
Here’s the page: http://www.closetohomeclothing.com/ahop/