That’s a Webflow template you’re looking at, so the best way is to buy it. That way you get the design, plus the learning, and save the coding hours as well. Well worth it. And you support the awesome designers who come up with these techniques.
Here’s the template page, and you can use the designer preview link to see how they’ve built that part if you’re just trying to learn a bit. The designer on this one did a great job of documenting the admin processed too, with videos under the style guide.
Hey, you can hire a website design company for this work. I can recommend you Ethereal IT Solutions as they are the best website design company in Delhi. They provide great services at low prices. You can consult for any website or Digital marketing issues.