test.css

.main {
    display: inline-block;
    text-align: center;
    font-size: 16px;
}

.row {
    margin: 0;
}

.calendar {
    font-size: 1.75em;
}

.icon {
    composes: row;
}

.number {
    color: #b35732;
    font-size: 0.81em;
    position: relative;
    background: white;
    display: block;
    width: 1.5em;
    height: 1.0em;
    margin: -1.4em auto 0.3em;
}

.month {
    composes: row;
    text-transform: uppercase;
    font-size: 0.56em;
}