.numberCircle {
    border-radius: 50%;
    behavior: url(PIE.htc); /* remove if you don't care about IE8 */
    width: 25px;
    height: 25px;
    padding: 12px;
    background: #fff;
    border: 3px solid black;
    color: black;
    text-align: center;
    font: 35px helvetica, sans-serif;
    display: inline-block;
}

.larger {
    font-size: 36px
}