Hey How is everyone Hope your all well

I have a question How can i make my blog look like the posts in this blog the url is provided please click here to see the screenshot

cant post url any way 4 posts side by side

Also what is required to became a blogger template designer only for blogspot where did you learn how to make a template in the first place who even showed you??? how did you learn??

Also do you have to learn a bunch of coding jargon?