Choose the initial component of a class within a webpage, even if the components are nested at various depths

Exploring the realm of CSS selectors, I am faced with an intriguing challenge. While it's common practice to utilize class or id attributes for styling elements, this exercise calls for a different approach. Can I achieve the desired outcome without relying on these two tools?

Picture a scenario where numerous p elements are scattered throughout the webpage, nested within various unknown block-type elements. The goal is to target the very first p element that appears and apply a red color to its text. How can this be accomplished?

My initial strategy using the :first-of-type selector fell short as it only selects the first p element within its parent. Given that each p element has distinct parents, this approach ends up highlighting all p elements on the page.

Another attempt involved enclosing the contents within a global div and then targeting the first p element within that container. Unfortunately, this method also proved ineffective:

div:first-of-type p:first-of-type{
  color: red;  
}

p:first-of-type{
  color: red;  
}
<div> 
  <p> p element at one nesting</p>
</div>

<p> p element not nested</p>

<h1>
  <p> p element at one nesting (oddly nested inside h1 tag)</p>
</h1>

<div>
  <div> 
    <p> p element at two nestings</p>
  </div>
</div>

Answer №1

It can be quite challenging to target elements with unspecified depth and no class assignments without traversing the DOM extensively. While vanilla CSS may not offer a clear solution, utilizing a small snippet of jQuery can help achieve this.

var ps = $('p');

console.log(ps[0])
$(ps[0]).css('color', 'red')
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div> 
  <p> p element at one nesting</p>
</div>

<p> p element not nested</p>

<h1>
  <p> p element at one nesting (oddly nested inside h1 tag)</p>
</h1>

<div>
  <div> 
    <p> p element at two nestings</p>
  </div>
</div>

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