<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row chat-window col-xs-5 col-md-3" id="chat_window_1" style="margin-left:10px;"> <div class="col-xs-12 col-md-12"> <div class="panel panel-default"> <div class="panel-heading top-bar"> <div class="col-md-8 col-xs-8"> <h3 class="panel-title"><span class="glyphicon glyphicon-comment"></span> Chat - Miguel</h3> </div> <div class="col-md-4 col-xs-4" style="text-align: right;"> <a href="#"><span id="minim_chat_window" class="glyphicon glyphicon-minus icon_minim"></span></a> <a href="#"><span class="glyphicon glyphicon-remove icon_close" data-id="chat_window_1"></span></a> </div> </div> <div class="panel-body msg_container_base"> <div class="panel-footer"> <div class="input-group"> <input id="btn-input" type="text" class="form-control input-sm chat_input" placeholder="Write your message here..." /> <span class="input-group-btn"> <button class="btn btn-primary btn-sm" id="btn-chat">Send</button> </span> </div> </div> </div> </div> </div> </div>

body{ height:500px; position: fixed; bottom: 0; } .col-md-2, .col-md-10{ padding:0; } .panel{ margin-bottom: 0px; } .chat-window{ bottom:0; position:fixed; float:right; margin-left:10px; } .chat-window > div > .panel{ border-radius: 5px 5px 0 0; } .icon_minim{ padding:2px 10px; } .msg_container_base{ background: #e5e5e5; margin: 0; padding: 0 10px 10px; max-height:300px; overflow-x:hidden; } .top-bar { background: #666; color: white; padding: 10px; position: relative; overflow: hidden; } .msg_receive{ padding-left:0; margin-left:0; } .msg_sent{ padding-bottom:20px !important; margin-right:0; } .messages { background: white; padding: 10px; border-radius: 2px; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2); max-width:100%; } .messages > p { font-size: 13px; margin: 0 0 0.2rem 0; } .messages > time { font-size: 11px; color: #ccc; } .msg_container { padding: 10px; overflow: hidden; display: flex; } img { display: block; width: 100%; } .avatar { position: relative; } .base_receive > .avatar:after { content: ""; position: absolute; top: 0; right: 0; width: 0; height: 0; border: 5px solid #FFF; border-left-color: rgba(0, 0, 0, 0); border-bottom-color: rgba(0, 0, 0, 0); } .base_sent { justify-content: flex-end; align-items: flex-end; } .base_sent > .avatar:after { content: ""; position: absolute; bottom: 0; left: 0; width: 0; height: 0; border: 5px solid white; border-right-color: transparent; border-top-color: transparent; box-shadow: 1px 1px 2px rgba(black, 0.2); // not quite perfect but close } .msg_sent > time{ float: right; } .msg_container_base::-webkit-scrollbar-track { -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3); background-color: #F5F5F5; } .msg_container_base::-webkit-scrollbar { width: 12px; background-color: #F5F5F5; } .msg_container_base::-webkit-scrollbar-thumb { -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,.3); background-color: #555; } .btn-group.dropup{ position:fixed; left:0px; bottom:0; }