How can I modify a sale badge's position in my online store's code?

Hello everyone.

I need to make the sale badge similar to the image below:

Store code: https://1rokabnxpsaai96s-78669414739.shopifypreview.com/

Does anyone know how to modify the code to achieve this?
My main need is to adjust the badge to be diagonally in the top of the picture as seen in the above image.

Thanks

@Andy106 - can you activate sale badge?

it should be enabled here:
https://03df82.myshopify.com/

Hello, @suyash1 any updates to this?

@Andy106 - hi, I tried it but not been able to get perfect solution yet