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<html><body><h1>The Element Object</h1><h2>The insertAdjacentHTML() Method</h2><button onclick="myFunction()">Insert</button><p>Click "Insert" to insert a span inside the header:</p><h2 id="myH2">My Header</h2><script>function myFunction() { const h2 = document.getElementById("myH2"); let html = "<span style='color:red'>My span</span>"; h2.insertAdjacentHTML("afterbegin", html);}</script></body></html>