<body>
  <div>
      <img src="demo.png" usemap="#mapa1" 
           width="200" height="200" alt="demo" />
      <map id="mapa1" name="mapa1">
        <area shape="rect" coords="1,1,100,100" 
              href="1.html" alt="pierwszy obszar" />
        <area shape="rect" coords="100,1,200,100"
              href="2.html" alt="drugi obszar" />
        <area shape="rect" coords="1,100,100,200"
              href="3.html" alt="trzeci obszar" />
        <area shape="rect" coords="100,100,200,200"
              href="4.html" alt="czwarty obszar" />
      </map>
  </div>
</body>
