@media only screen and (min-width: 200px )  and  ( max-width: 799px )     {

.maintenance_message {

   font-size: 120%;

}

}



@media only screen and (min-width: 800px )  and  ( max-width: 1279px )     {

.maintenance_message {

   font-size: 180%;

}

}



@media only screen and (min-width: 1280px ) and  ( max-width: 3000px )      {

.maintenance_message {

   font-size: 200%;

}

}

 position: fixed;

   left: 0px;

   bottom: 0px;

   background-color: #999;

   height: 50px;

   width: 300px;

<head>

<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">

</head>