Apply a class styling when its parent element also has a specific class

Is there a way to target a specific group of elements when the parent class changes? For example, if the parent class is alertStateTrue or alertStateFalse.

<div id="parent" class="alertStateTrue">
   <div class="childAlertStateTrue"></div>
   <div class="childAlertStateTrue"></div>
   <div class="childAlertStateFalse"></div>
   <div class="childAlertStateFalse"></div>
</div>

.alertStateTrue .childAlertStateTrue
{
   display: block;
}

.alertStateTrue .childAlertStateFalse
{
   display: none;
}

.alertStateFalse .childAlertStateTrue
{
   display: none;
}

.alertStateFalse .childAlertStateFalse
{
   display: block;
}

Answer №1

Achieving element selection based on their parents is possible:

.a .b {}

The provided rule targets all elements with class .b that are inside elements with class .a.


TIP

To streamline your CSS, you can group selectors with identical properties and values:

.alertStateFalse .childAlertStateFalse,
.alertStateTrue .childAlertStateTrue {
   display: block;
}

.alertStateTrue .childAlertStateFalse,
.alertStateFalse .childAlertStateTrue {
   display: none;
}

Answer №2

Understanding the parent-child relationship in CSS is crucial for styling elements on a webpage. Following NOX's advice can help you achieve this.

To be even more precise, consider using the selector #parent div.childAlertStateTrue

Implementing this structure will yield successful results.

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