@media only screen and (max-width: 540px){
    div#section1 {
        padding-left: 25%;
    }
    div#section3 {
        width: 97%;
    }
    td {
        font-size: 14px;
    }
    input{
        height: 1.75em;
        font-size: 18px;
    }
    select {
        height: 2.5em;
        width: 20em;
    }
    p.hint {
        font-size: 0.9em;
    }
    input[type="checkbox"] {
        width: 15px;
    }
}