demo.css

html, body {
    height: 100%;
    margin: 16pt;
    color: #333;
    font-family: 'Balsamiq Sans';
}

#titlebar {
    margin-left: auto;
    margin-right: auto;
    width: 90%;
    position: relative;
}

#titlebar h1 {
    text-align: center;
    font: 600 36px;
    padding: 0px;
    margin: 10px;
}

#titlebar h2 {
    text-align: center;
    font: 600 24px;
    padding: 0px;
    margin: 10px;
}

#content {
    margin-left: auto;
    margin-right: auto;
    width: 50%;
    min-width: 540px;
    max-width: 640px;
    position: relative;
}

#mainform {
    margin-left: auto;
    margin-right: auto;
    width: 80%;
    font: 400 12pt 'Balsamiq Sans';
}

#address {
    margin-left: auto;
    margin-right: auto;
    width: 400px;
    font-size: 12pt;
}

#ok {
    width: 80px;
}

#results {
    margin-top: 40px;   
}

#savings {
    font-size: 18pt;
}

#addapi {
    margin-top: 200px;
    float: right;
}