Inheriting CSS Classes: Passing Down Style Traits

I'm trying to understand how to apply a CSS rule that looks like this:

.c1 .c2 .c3 {
   //some css rules
}

Is it possible to apply these rules in one step like this:

<div class="c1 c2 c3">
   //some web content
</div>

Or do I need to structure it like this:

<div class="c1">
  <div class="c2">
    <div class="c3">
      //some web content
    </div>
  </div>
</div>

Is there an easier way to achieve this without making changes to the CSS file? I want to apply these rules to individual divs.

Answer №1

.c1 .c2 .c3 refers to

<div class="c1">
  <div class="c2">
    <div class="c3">
      //content within the webpage
    </div>
  </div>
</div>

On the other hand, .c1.c2.c3 (noting the space difference) represents

<div class="c1 c2 c3">
   //content within the webpage
</div>

.c1 .c2 (with space) is known as the descendant selector: http://www.w3.org/TR/CSS2/selector.html#descendant-selectors

In contrast, .c1.c2 (without space) will target elements that have both the classes c1 and c2, by combining two class selectors.

You may find these resources helpful: http://css-tricks.com/multiple-class-id-selectors/ and this discussion on SO: Select element based on multiple classes

In your situation, nested structures might be necessary.

Answer №2

To apply the same CSS to multiple classes, you can use commas between selectors like this:

.class1, .class2, .class3 {

}

The notation .class1 .class2 .class3 signifies a parent-child relationship.

For example, the following is perfectly acceptable:

<div class="class1 class2 class3">
   //some website content
</div>

As a result, the CSS rules from class1, class2, and class3 will all be applied to the div element.

Consider what you are trying to achieve. If you just want to apply styles from three classes to one element, use the method described above. Avoid creating unnecessary wrappers solely for styling purposes.

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