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<html><body><h1>The Window Object</h1><h2>The matchMedia() Method</h2><p>If the viewport is less or equal to 500 pixels wide, set background to yellow,otherwise to pink.</p><p>Resize the browser window to see the effect.</p><script>// Create a match Functionfunction myFunction(x) { if (x.matches) { document.body.style.backgroundColor = "yellow"; } else { document.body.style.backgroundColor = "pink"; }}// Create a MediaQueryList objectconst mmObj = window.matchMedia("(max-width: 500px)")// Call the match function at run timemyFunction(mmObj);// Add the match function as a listener for state changesmmObj.addEventListener("change", function() { myFunction(mmObj);});</script></body></html>