chatwindow.css

html, body {
    height: 100%;
}
body {
    padding-right: 20px;
    padding-left: 20px;
    min-height: 100%;
}
.chat {
    list-style: none;
    margin: 0;
    padding: 0;
}
.chat li {
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 1px dotted #B3A9A9;
}
.chat li.left .chat-body {
    margin-left: 60px;
}
.chat li.right .chat-body {
    margin-right: 60px;
}
.chat li .chat-body p {
    margin: 0;
    color: #777777;
}
.panel .slidedown .glyphicon, .chat .glyphicon {
    margin-right: 5px;
}
.panel-body {
    display: block;
    overflow-y: scroll;
    word-wrap: break-word;
    height: calc(82% - 5px);
    min-height: 250px;
    position: fixed;
    width: 100%;
}
::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    background-color: #F5F5F5;
}
::-webkit-scrollbar {
    width: 12px;
    background-color: #F5F5F5;
}
::-webkit-scrollbar-thumb {
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, .3);
    background-color: #555;
}
.input-group-btn {
    font-size: 12px;
}
.pull-left .img-circle {
    margin-right: 10px;
}
.pull-right .img-circle {
    margin-left: 10px;
}
.panel-footer {
    position: fixed;
    margin-top: -5px;
    bottom: 0;
    width: 100%;
}
.collapse.in {
    position: fixed;
    height: 100%;
}