boardstyle.css

table {
    margin-left:auto;
    margin-right:auto;
    width: auto;
}


td {
    border: 1px solid white;
    width:10vw;
    height:10vw;
    background:grey;
    font-size: 7vw;
    text-align: center;
    vertical-align: middle;
    color: white;
    font-family: 'Roboto', sans-serif;
    position: relative;

}

#Actions{
    text-align: center;
}

.browser-default{
        width: 60%;
}

td:after {
    display: block;
    margin-top: 100%;
}

td .content {
    position:center;
    top:0;
    bottom:0;
    left:0;
    right:0;
}