.side-panel.side-panel-container {
    width: 75%!important;
}

div[data-type="self"].bx-messenger-content-item .bx-messenger-content-item-content {
    border-color: #8da0c38a;
    background-color: #e6f0fd;
}
div[data-senderid="8015"] span.bx-messenger-content-like-button {
    display: none!important;
}