JSFiddle - React, Tailwind, and code Playground

by Qwerty_Wasd

HTML

<img id="img" src="" alt="Россия" onmouseover="hover;">

CSS

img{height:150px;width:220px;}
img[alt="Россия"]{font-size:20px;color:red;}

JavaScript

function hover(){
var img=document.getElementById("img"), address="http://www.dorogavrim.ru/img/lib/Flag_of_Russia_2008.jpg";
if(img.src==address) img.src=""; else img.src=address;
}