.specialChar {
    position: relative;
    display: inline-block;
    border: 1px solid #000;
    margin: 5px;
    padding: 10px;
    font-family: arial;
    height: 70px;
    width: 60px;
    background: rgba(0, 0, 0, .1);
}

.specialChar p {
    margin: 0;
}

.specialChar .dec,
.specialChar .hex {
    color: rgba(0, 0, 0, .5);
}

.char {
    font-size: 30px;
}

.container {
    overflow: hidden;
}