Well, I've a Div like below in index.html
<div class="first">Hey This is it.</div>
first class definition.
   .first{
          width: 55px;
          height: 55px;
          color: green;
      }
I'm trying to inject a new Class named second from external file style.css (I can't edit this file) with it's definition like below.
    .second{
          color: blue;
      }
After injecting, I can see the element like below in index.html.
<div class="first second">Hey This is it.</div>
But Why div color is still with Green?? I want to get the div text color as Blue. How to acheive this?? Thanks.