html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    background-color: #f7f7f7;
}

h2 {
    margin: 0 0 10px;
}

#wrapper {
    padding: 20px;
    margin: 0 auto;
    max-width: 600px;
}

.center {
    text-align: center;
}

.table {
    display: table;
    table-layout: fixed;
    width: 100%;
}

.table-cell {
    display: table-cell;
}

.va-middle {
    vertical-align: middle;
}

.w75 {
    width: 75px;
}

.h30 {
    height: 30px;
}