Blog Page using Live Composer

Hello guys! Because you answered me before, here I am again with more questions. I dont’t know if what I want do is ok in the free theme, but I want to try anyways! lol

I created a template for my blog posts page, but I would like to make some changes.

Here is the link, so you can see better what I am saying (http://www.nepatriotas.com.br/2017/reforcos-dos-pats-falam-imprensa/)

:: Questions ::

1- How can I delete those grey lines around the post (outline box)?
2- How can I align the main picture to center?
3- How can I add the author information in the end of the post?
4- How can I delete those previous link button (above comments)?

Hope you guys can help me with this. I am bulding a complete new and amazing website to my project, all using this fantastic theme!

Thank you one more time!

Hello,

Please create a separate topic for each of your questions in order to make it easier to help you.

Kind Regards, Roman.