i cant change the background of my product page

Store Design
,
1

i use a template from build your store ai so its not on shopify but pretty much i cant change the color of the background of my product information page

2

@hiitsmessi

Welcome to the Shopify Community! Please share your store URL and password (if it’s password-protected), so I can check and provide you with the exact solution.

3

Hey there @hiitsmessi Follow the steps below and let me know if it works for you

  1. Go to your Online store > Themes > Edit code
  2. Open your theme.liquid file
  3. Paste the below code before 
<style>
{%if template contains 'product'%}
body{
background:red !important;
}
{%endif%}
{%if template contains 'collection'%}
body{
background:green !important;
}
{%endif%}
{%if template contains 'page'%}
body{
background:blue!important;
}
{%endif%}
<style>