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<html><body><p>Click the button to create a LEGEND element with some text.</p><fieldset id="myFieldset"> Name: <input type="text"></fieldset><br><button onclick="myFunction()">Try it</button><script>function myFunction() { var x = document.createElement("LEGEND"); var t = document.createTextNode("Personalia:"); x.appendChild(t); document.getElementById("myFieldset").appendChild(x);}</script></body></html>