<!-- Bootstrap Core CSS -->
<link rel="stylesheet" href="<?php echo base_url(); ?>assets/css/bootstrap.min.css" rel="stylesheet">
<!-- Custom CSS -->
<link rel="stylesheet" href="<?php echo base_url(); ?>assets/css/chat.css" rel="stylesheet">
<link rel="stylesheet" href="<?php echo base_url(); ?>assets/font-awesome/css/font-awesome.min.css">