print.css

body {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    color: #444
}

h1 {
    font-size: 2.3em;
    text-align: center;
    color: #333
}

.VContainer {
    display: -webkit-box;      /* OLD - iOS 6-, Safari 3.1-6 */
    display: -moz-box;         /* OLD - Firefox 19- (buggy but mostly works) */
    display: -ms-flexbox;      /* TWEENER - IE 10 */
    display: -webkit-flex;     /* NEW - Chrome */
    display: flex;             /* NEW, Spec - Opera 12.1, Firefox 20+ */
    flex-direction: vertical;
    justify-content: center;
}

.HContainer {
    display: -webkit-box;      /* OLD - iOS 6-, Safari 3.1-6 */
    display: -moz-box;         /* OLD - Firefox 19- (buggy but mostly works) */
    display: -ms-flexbox;      /* TWEENER - IE 10 */
    display: -webkit-flex;     /* NEW - Chrome */
    display: flex;             /* NEW, Spec - Opera 12.1, Firefox 20+ */
    flex-direction: horizontal;
    justify-content: center;
}

button {
    visibility: hidden;
}

#table { 
    width: 600px;
    height: 600px;
    font-size: 30px;
    display: table;
    margin: 2em auto;
    border-collapse: collapse; 
    font-family: Calibri, sans-serif;
}

.tr {
    display: table-row;
}

.tr:first-child {
    border-top: solid 4px;
}

.tr:nth-child(3n) .td { 
    border-bottom: solid 4px; 
}

.td {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
    padding-top: 100%; /* 1:1 Aspect Ratio */
    display: table-cell;
    border: solid 1px;
    padding: 2px;
    height: 2em;
    width: 2em;
    text-align: center;
    vertical-align: middle;
}

.td:first-child {
    border-left: solid 4px;
}

.td:nth-child(3n) {
    border-right: solid 4px;
}

.Circle{
    background-color: white;
    display: block;
    height: 100%;
    width: 100%;
    border-radius: 50%;
    border: none;
    color: #000;
    line-height: 50px;
    text-align: center;
}

.label {
    text-align: center;
    font-size: 20px;
}

footer {
    visibility: hidden;
}