How do I center an image on my homepage and remove header

[atlkicks]

Hello I would like to know how to center and remove the header of my website. I have attached images below of exactly what I am talking about. My Shopify store is https://atlkickswarehouse.myshopify.com/ pw:maucke

[GemPages]

Hi @atlkicks ,

I would like to give you some recommendation to support you.

Please go to Online Store > Themes > click 3 dots button > Edit code > Theme.liquid and add code above the tag on the file Theme.liquid.

I hope you find the answer helpful, if you need further support, do not hesitate to reach out to us.

Kind & Best regards,
GemPages Support Team.