.dialog{
    text-align:left;
    margin:0;
}

.body{
    display:inline-block;
    text-align:left;
    padding:0;
    margin-bottom:23px;
    overflow: auto;
    max-height: calc(100vh - 90px);
}

.big, .medium, .small{
    display: none;
    max-width: 100%;
    width: 100%;    /*needed for ie*/
}

@media (min-width:1530px) {
    .big{
        display:inline;
    }
}

@media (min-width:1070px) and (max-width:1529px){
    .medium{
        display:inline;
    }
}

@media (max-width:1069px) {
    .small{
        display:inline;
    }
}

@media (max-width:770px) {
    .small{
        display:inline;
    }
}