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<!DOCTYPE html> <html> <body> <h2>JavaScript HTML DOM</h2> <p>Finding HTML Elements by Query Selector</p> <p class="intro">Hello World!.</p> <p class="intro">This example demonstrates the <b>querySelectorAll</b> method.</p> <p id="demo"></p> <script> const x = document.querySelectorAll("p.intro"); document.getElementById("demo").innerHTML = 'The first paragraph (index 0) with class="intro" is: ' + x[0].innerHTML; </script> </body> </html>
