.message {
            padding: 20px;
            border-radius: 5px;
            background-color: #fff;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
            margin-bottom: 20px;
        }
        #large {
            background-color: #d4edda;
            color: #155724;
        }
        #small {
            background-color: #f8d7da;
            color: #721c24;
        }
        #changedevice {
            display: none;
            padding: 20px;
            border-radius: 5px;
            background-color: #f8d7da;
            color: #721c24;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        }
        #dxmain {
            display: none;

        }
 .dnone{ display: none!important;}