Country API made with HTML, CSS, JS, SASS and Bootstrap

Hi Franco, Great work!

A tip from me for cleaner or more readable code is by breaking-up your createCard DOM creation into functions. for example

const createImageContainer = (image) => {
 let containerImage = document.createElement('div')
    containerImage.setAttribute('style',`background: url("${image}") center no-repeat;background-size: cover;`)
    let containerTitle = document.createElement('div')
    let containerDetail = document.createElement('div')
}

const createHeader = title => {
  let h1 = document.createElement('h1')
  let contentT = document.createTextNode(title)
}

//in createCard you just need to do this
const createCard = (image,title,population,region,capital) => {
   createHeader(title);
   createImageContainer(image);

//other codes
}

I hope it helps! Cheers!