如果孩子有某堂课，给父母css

Question

how do I apply css to parent if his child have a certain class?

for example:

<p>
     <span class="validationMessage">Last Name is required field</span>
</p>

I want to give the p tag css base on that the his child element has class called "validationMessage"

Answer 1

Try :has selector:

 $("p:has(span.validationMessage)").css(yourPCss);

Have a look: http://jsfiddle.net/jdfcr/

Answer 2

.parent()

$('span.validationMessage').parent().css(style);

also look at

.hasClass()