@media only screen and (max-device-width : 736px)  
{
        .homepage_blueboxes
    {
        position:relative;box-sizing:border-box; padding:5px; width:80%; margin-bottom: 2%; background-image: url('/images/centralbackground.png');margin-left:auto;margin-right:auto;
    }
}

@media only screen and (min-device-width : 737px) and (max-device-width : 1024px)  
{
       .homepage_blueboxes
    {
        display:inline-block;box-sizing:border-box; padding:5px; width:31.5%; margin-right: 1%; background-image: url('/images/centralbackground.png');
    }
 
}


@media only screen and (min-width : 0px) and  (min-device-width : 1025px)   
{
    .homepage_blueboxes
    {
        display:inline-block; box-sizing:border-box; padding:5px; width:31.5%; margin-right: 1%; background-image: url('/images/centralbackground.png');
    }
}