I need your help!
I have installed the theme Sparkling, but I would like the posts in Dazzlyng style.
The Sparkling image for posts are very large, so I wanted to make a post in the style Dazzlyng (but not changing the Sparkling theme).
PS .: Sorry for my bad english. I really hope that my problem understood.
I hope you are well today and thank you for your question.
You have to develop custom code in the child theme of sparkling theme to achieve this.
Developing custom code for custom functionality is beyond the scope of support that we provide here.
If you are not a developer then you can consider hiring a developer to develop it for you. You can hire a developer from any freelance site. Colorlib recommends the developer https://www.upwork.com/freelancers/~011652ffec8865c6d5