var triangle = document.querySelector('.triangle');
let dom = '';
for(let i = 1; i <= 3; i++){
dom += `<p>${'*'.repeat(i)}</p></br>`
}
triangle.innerHTML = dom;
var triangle = document.querySelector('.triangle');
let dom = '';
for(let i = 1; i <= 3; i++){
dom += `<p>${'*'.repeat(i)}</p></br>`
}
triangle.innerHTML = dom;