instantchat/public_html/css/style.css

img {
    max-width: 100%;
}

.container {
    margin: auto;
    max-width: 1170px;
}

.messaging {
    overflow: hidden;
    padding: 0 0 50px 0;
    position: relative;
}

.messaging_heading {
    border: 1px solid #c4c4c4;
    border-bottom: 0;
    padding: 10px 29px 10px 20px;
    overflow: hidden;
}

.inbox_msg {
    border: 1px solid #c4c4c4;
    clear: both;
    overflow: hidden;
}

/* mobile */
#sidebar {
    align-items: stretch;
    border: 1px solid #c4c4c4;
    background: #f8f8f8 none repeat scroll 0 0;
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 0;
    transform: translateX(100%);
    transition-duration: 0.7s;
    width: 100%;
    z-index: 1;
}

/* desktop */
@media (min-width: 768px) {
    #sidebar {
        border-left: 1px solid #c4c4c4;
        /*float: right;*/
        /*position: relative;*/
        overflow: hidden;
        /*width: 40%;*/
    }
}

#sidebar.active {
    left: 0;
    transform: none;
    transition-duration: 0.7s;
}

@media (min-width: 768px) {
    #sidebar.active {
        right: 0;
        position: relative;
        transform: none;
        transition-duration: 0.7s;
        width: 40%;
    }
}

.sidebar_heading {
    float: left;
    width: 40%;
}

/*Search*/
.heading_search {
    border-bottom: 1px solid #c4c4c4;
    padding: 10px 29px 10px 20px;
    overflow: hidden;
}

.search_bar {
    display: inline-block;
    text-align: right;
    width: 60%;
}

.search_bar input {
    background: none;
    border-bottom: 1px solid #cdcdcd;
    width: 80%;
    padding: 2px 0 4px 6px;
}

.search_bar .input-group-addon { 
    margin: 0 0 0 -30px;
}

.search_bar .input-group-addon button {
    background: rgba(0, 0, 0, 0) none repeat scroll 0 0;
    border: medium none;
    color: #707070;
    font-size: 18px;
    padding: 0;
}

.chat_ib {
    float: left;
    padding: 0 0 0 15px;
    width: 88%;
}

.chat_ib h5 { 
    color: #464646; 
    font-size: 15px; 
    margin: 0 0 8px 0;
}

.chat_ib h5 span { 
    float: right;
    font-size: 13px; 
}

.chat_ib p { 
    font-size: 14px; 
    color: #989898; 
    margin: auto;
}

.chat_img {
    float: left;
    width: 11%;
}

.chat_people { 
    overflow: hidden;
    clear: both;
}

.chat_list {
    border-bottom: 1px solid #c4c4c4;
    margin: 0;
    padding: 18px 16px 10px;
}

.inbox_chat { 
    height: 550px; 
    overflow-y: scroll;
}

.active_chat { 
    background: #ebebeb;
}

.incoming_msg_img {
    display: inline-block;
    width: 6%;
}

.received_msg {
    display: inline-block;
    padding: 0 0 0 10px;
    vertical-align: top;
    width: 92%;
}

.received_withd_msg {
    width: 57%;
}

.received_withd_msg p {
    background: #ebebeb none repeat scroll 0 0;
    border-radius: 3px;
    color: #646464;
    font-size: 14px;
    margin: 0;
    padding: 5px 10px 5px 12px;
    width: 100%;
}

.messages {
    padding: 30px 15px 0 25px;
    width: 100%;
}

@media (min-width: 768px) {
    .messages {
        /*float: left;*/
        padding: 30px 15px 0 25px;
        /*width: 60%;*/
    }
}

.time_date {
    color: #747474;
    display: block;
    font-size: 12px;
    margin: 8px 0 0;
}

.sent_msg {
    float: right;
    width: 46%;
}

.sent_msg p {
    background: #05728f none repeat scroll 0 0;
    border-radius: 3px;
    font-size: 14px;
    margin: 0; color:#fff;
    padding: 5px 10px 5px 12px;
    width: 100%;
}

.outgoing_msg {
    overflow: hidden;
    margin: 26px 0 26px;
}

.input_msg_write input {
    background: rgba(0, 0, 0, 0) none repeat scroll 0 0;
    border: medium none;
    color: #4c4c4c;
    font-size: 15px;
    min-height: 48px;
    width: 100%;
}

.type_msg {
    border-top: 1px solid #c4c4c4;
    position: relative;
}

.msg_send_btn {
    background: #05728f none repeat scroll 0 0;
    border: medium none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    font-size: 17px;
    height: 33px;
    position: absolute;
    right: 0;
    top: 11px;
    width: 33px;
}

.msg_send_btn svg {
    fill: #ffffff;
}

.msg_history {
    height: 516px;
    overflow-y: auto;
}