df-messenger {
    z-index: 10000;
    position: fixed;
    bottom: 16px;
    right: 16px;
    /* general */
    --df-messenger-font-family: 'Arial', 'Helvetica', 'sans-serif';
    --df-messenger-primary-color: #5F7757;
    --df-messenger-chat-background: #FAFAFA;
    --df-messenger-chat-border-radius: 8px;
    --df-messenger-chat-window-width: 400px;
    --df-messenger-chat-window-height: 525px;
    --df-messenger-chat-window-box-shadow: 2px 2px 5px;
    --df-messenger-font-size: 14px;
    /* titlebar */
    --df-messenger-titlebar-title-font-size: 22px;
    --df-messenger-titlebar-background: #637d5A;
    --df-messenger-titlebar-title-align: center;
    /* send icon */
    --df-messenger-send-icon-color: #5F7757;
    --df-messenger-send-icon-color-hover: #8f9f89;
    /* bot bubble */
    --df-messenger-message-bot-background: #DCE3D9;
    --df-messenger-message-user-font-color: #000000;
    /* user bubble */
    --df-messenger-message-user-background: #5F7757;
    --df-messenger-message-user-font-color: #FFFFFF;
    /* chips */
    --df-messenger-chips-border-color-hover: #808080;
    --df-messenger-chips-background: #5F7757;
    --df-messenger-chips-font-color: #FFFFFF;
    --df-messenger-chips-hover-background: #AD560F;
    /* links */
    --df-messenger-link-font-color: #C1682C;
    --df-messenger-link-visited-font-color: #808080;
    --df-messenger-link-hover-font-color: #0b57d0;\
    /* buttons */
    --df-messenger-button-border: 1px solid #000000;
    --df-messenger-button-border-radius: 8px;
    --df-messenger-button-font-size: 17px;
  }