How to put a theme on wordpress?

Question

CMS

Hello!
The next problem - for example, there is a theme - https://wordpress.org/themes/eleganto/ , on the preview it is like a landing page.
I put it, I see the following https://yadi.sk/i/zPspVIJo388b3V
And so with almost all topics, some kind of slag comes out, and not just on the preview.
VP 4.7.

Answer 1

Have you read the manual for the template? Everything is written there (albeit in English). You have to set up the template manually.