parentlerle istenilene doğru ilerlemek

Js ile Ezberler

<div id="div1" style="background-color: burlywood">
    <p>Lorem ipsum dolor sit amet, nde voluptatem voluptates.</p>
    <p>Lorem ipsum dolor sit amet, s.</p>
    <p>Lorem ipsum dolor sit amet,rehenderit.</p>
    <p>Lorem ipsum dolor sit amet,rehenderit.</p>

</div>
<button onclick="tikla()">Tikla</button>
<script>
    function tikla() {
        var parent=document.getElementById("div1");
        var child=parent.childNodes[3];
        child.style.color="blue";
        child.style.backgroundColor="red";
    }
</script>