body {
    font:normal 14px arial;

}

#main {
    padding:2px;
}

/*for small media*/
@media screen and (min-width: 768px) {
    #main {
        padding:10px;
    }
}

/*for  Tablets*/
@media screen and (min-width: 992px) {
    #main {
        padding:20px;
    }
}

/*for Laptops and Desktop*/
@media screen and (min-width: 1200px) {
    #main {
        padding:20px 10px;
    }
}