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<!DOCTYPE html> <html> <body> <h1>The Element Object</h1> <h2>The querySelectorAll() Method</h2> <p>Add a background color to all elements with class="example" in "myDIV":</p> <div id="myDIV" style="border:1px solid black"> <h2 class="example">A Heading</h2> <p class="example">A p element.</p> <p class="example">A p element.</p> <p>A p <span class="example">element</span>.</p> </div> <script> const element= document.getElementById("myDIV"); const list = element.querySelectorAll(".example"); for (let i = 0; i < list.length; i++) { list[i].style.backgroundColor = "red"; } </script> </body> </html>
