Question

I want to select a div whose class = "c" & id = "i" :

 .c
 {
   color: red;
   border:1px;
   font-size:25px;
   background-color: yellow;
   width:200px;
 }

 <div id="i" class="c">change</div>

now how can i change only the width from class=”c” properties for this div?

Answer 1

You can do something like this:

.c#i { width:400px }

This changes the width of the div with class c AND id i