Ways to design a parent element based on the presence of a particular child element

I am facing an issue with applying a default background color to #parent in HTML when it contains a #child.

<div id="parent">
  <div id="child"></div>
</div>

Even though I tried using the CSS code below, the :contains pseudo selector is not working as expected:

#parent {
  background: red
}
#parent:contains(#child) {
  background: none
}

Is there a different method or workaround to achieve this functionality?

Answer №1

:contains() was initially created to target elements with specific text content, rather than elements containing other elements. Due to the complexities involved in matching elements by text, browser support for :contains() was ultimately removed from the specification.

Given that CSS lacks a parent selector, and the existence of :has() (which examines elements) is exclusive to jQuery, accomplishing this task solely with CSS remains challenging at present.

Notably, jQuery also supports :contains(), albeit following the older specification where it employs :has() for element targeting instead.

Answer №2

Utilizing jquery

if($("#child").length>0) $("#parent").css("backgroundColor","#fff");

This task cannot be achieved with only css.

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