#logo {
    width: 20em;
    margin-top: 1em;
    /*margin-bottom: 2ex;*/
}

#logo2 {
    width: 100%;
    margin-top: 10px;
    margin-bottom: 10px;
    border: 1px solid #f3f3f3;
}

#logo_certus {
    width: 19em;
    margin-top: 2em;
    margin-bottom: 2ex;
}