css query selector for text code example

Example 1: do some css using js on selector

let myElement = document.querySelector("#superman");
myElement.style.backgroundColor = "#D93600";

Example 2: js queryselector

const content = document.querySelector('.content');

const towns = ['Helsinki', 'Espoo', 'Vantaa'];

towns.forEach(city => {
    content.innerHTML += `<p>${city}</p>`;
});