body {
    padding: 0 20px;
    box-sizing:border-box;
}

html {
    background-color: #eee;
    text-align: center;
}

.mainbox {
    display: inline-block;
    padding: 0;
    width: auto;
    min-width: 40%;
    margin: 0 auto;
    text-align: center;
}

.boxHeader {
    background-color: #2b2b2b;
    color: #fff;
    font-weight: bold;
    padding: 10px;
    text-align: left;
}

.boxContent {
    border: solid 2px #1a1a1a;
    background-color: #fff;
    padding: 10px;
}

#logo {
    position: relative;
    margin: 0 auto;
    padding: 0;
}

.row {
    margin: 30px 0 0 0;
    padding: 0;
    display:block;
}

    .row span {
        width: 100px;
        display: inline-block;
        text-align: right;
    }

.row-error {
    font-size: 11px;
    text-align: center;
}

    .row-error span {
        width:auto;
    }

.row-button {
    margin: 0;
    padding: 30px 0 30px 0;
    text-align: center;
}