td.wifisuccess{
background-image: url('../img/user_wifi_success24.png');
background-repeat: no-repeat;
padding-left: 30px !important;  /* width of the image plus a little extra padding */
display: block; 
}
td.wifiwarning{
background-image: url('../img/user_wifi_warning24.png');
background-repeat: no-repeat;
padding-left: 30px !important;  /* width of the image plus a little extra padding */
display: block; 
}
td.wifidanger{
background-image: url('../img/user_wifi_danger24.png');
background-repeat: no-repeat;
padding-left: 30px !important;  /* width of the image plus a little extra padding */
display: block; 
}