x
<html><head><style>h2::first-letter { font-size: 48px;}</style></head><body><h1>The Window Object</h1><h2 id="test" style="background-color:lightblue">The getComputedStyle() Method</h2><p>The computed font size for div::first-letter in the test element is:</p><p id="demo"></p><script>const element = document.getElementById("test");const cssObj = window.getComputedStyle(element, ":first-letter")let size = cssObj.getPropertyValue("font-size");document.getElementById("demo").innerHTML = size;</script></body></html>