Combining CSS classes in an element_问答_开发者

开发者 https://www.devze.com 2022-12-29 22:16 出处：网络

This could be the silliest question I\'ve ever made, but why does the text below is not rendered red?

相关专题：css

This could be the silliest question I've ever made, but why does the text below is not rendered red?

<html>
  <style>
  开发者_高级运维.c1 .c2 { 
     color: red; 
  }
  </style>
  <body>
     <span class="c1 c2">This should be red</span>
  </body>
</html>

Edit: I want to match elements that contain both c1 and c2 classes, like the example above, no less.

.c1 .c2 matches a c2 element inside a c1 element, just like html body matches a body element inside an html element. Remove the space to match an element with both classes:

.c1.c2 { 
   color: red; 
}

It should be .c1.c2. The way you have it written is a c2 INSIDE a c1.

The selector .c1 .c2 really means an element with the class c2 inside an element with the class c1.

To get the desired result, change your selector to .c1.c2, which will match elements with both styles.

If the intended meaning of your CSS is to match “an element with both c1 and c2 in its list of classes”, then it sould be .c1.c2. The given selector (.c1 .c2) means “an element with the class c2 that is a directly inside an element with the class c1”.

Edit: For sake of completeness, to match an element with at least one of the classes c1 and c2, you would use .c1, .c2. So, the space refers to the structure of the document, no space is “and” and comma is “or”.

Because .c1 .c2 selects a c2 element that is a child/descendant of a c1 element.

What you want is: