$(function(){
  var frames = [
      "folder/image.jpg",
      (other images)
    ];

$("#mali").spritespin({
    width     : 960,
    height    : 540,
    (other code)
  });

$( "div" ).addClass( "myClass" );

<div class="spritespin spritespin-instance" unselectable="on" style="overflow: hidden; position: relative; width: 480px; height: 327px;">

background: red            !important;

<div style="background: red;">
    The inline styles for this div should make it red.
</div>

div[style] {
   background: yellow !important;
}

@media only screen and (min-width: 100px) and (max-width: 767px) {
.spritespin, .spritespin-instance {
  width:383px !important;
  height:300px !important;
}

}