JSFiddle - React, Tailwind, and code Playground
HTML
<img src="http://www.itnetwork.cz/images/logo_cz.png?v=2" id="img1"/>
<img src="http://www.itnetwork.cz/images/img/person.png" id="img2" />
JavaScript
var img1 = document.getElementById("img1")
var img2 = document.getElementById("img2")
img1.onclick = function () {
if (img2.style.display == "block") {
img2.style.display = "none"
} else {
img2.style.display = "block"
}
}
img2.style.display = "none"