I am trying to set the 'img src' in the css file. I have studied different methods that could be used, but it is not working yet. if put the ::after in the css then in Chrome does not work but in Firefox works with different style. Getting confused a bit, any idea about this solution: https://jsfiddle.net/er1txx0z/
  <label class="control-label"></label>      
  <button id="btn1" class="btn btn-warning shadow dcweb_search" disabled="true">
    <img class="dcweb_search_img" />
  </button>
    <style>
    .dcweb_search{
    height: 60px;
    width: 60px;
    position: relative;
    top:-17px
    }
    .dcweb_search_img{
    width:40px;
    content:url('https://api.icons8.com/download/c5c8b5ba35e008ea471e9a53c5fa74c03ef6e78c/iOS7/PNG/256/Very_Basic/search-256.png');
    }
    </style>
 
    