Test element in JavaScript

Let's create a test element to study various metrics in the following lessons. We design this element so that it has borders, padding, and scrollbars:

<div id="elem"> some long text </div> #elem { width: 300px; height: 150px; margin: 50px auto; padding: 25px; background: #CFF5BF; border: 25px solid #F0D7A1; overflow: auto; text-align: justify; }


Let's get a reference to this element into a variable:

let elem = document.querySelector('#elem');

Make a similar test element for yourself. Check on it the properties that will be studied in the following lessons.