.blcok-txtMessage-attach{
    width: 100%;
    margin: 15px 0;
}
.blcok-txtMessage-attach .preview-image{
    max-width: 150px;
}
.preview-image .close-image{
    float: right;
    margin-right: -30px;
    margin-top: -10px;
}

.preview-file .close-file{
    float: right;
    margin-right: -35px;
    margin-top: -5px;
}
.preview-file{
    border: 1px solid #2170B8;
    border-radius: 5px;
    color: #2170B8;
    padding: 5px 15px;
    width: 90%;
}
.preview-image{
    border: 1px solid #2170B8;
    border-radius: 5px;
    color: #2170B8;
    padding: 10px;
}
.message-box-item{
    cursor: pointer;
}
.chat-list .message-box-lastmsg{
    min-height: 20px;
}
.chat-empty{
    text-align: center;
    padding: 15px;
    margin-top: 20px;
    border: 2px dashed #2170b8;
}
.chat-empty .m-icon-menu-chat{
    
    margin-right: 15px;
    width: 25px;
    height: 25px;
}
.chat-empty p{
    font-size: 16px;
}
.chat-list{
    overflow-y: scroll;
}

@media  (max-width: 1221px) and (min-width:991px){
    .chat .chat-list{
        width: 250px;
    }
    .chat .chat-dialog {
        width: calc(100% - 270px);
    }
}

.preview-file .loader {
    border: 4px solid #f3f3f3; /* Light grey */
    border-top: 4px solid #3498db; /* Blue */
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin2 2s linear infinite;
    float: right;
  }

  @keyframes spin2 {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }