td {
    border: 2px solid black;
    height: 150px;
    width: 150px;
    font-size: 100px;
    background-color: #c0c0c0;
    text-align: center;
    vertical-align: central;
    color: #fff;
    
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-select: none;
    user-select: none;
    
    cursor: move;
}

button {
    height: 50px;
    width: 150px;
    font-size: 1.5em;
    text-align: center;
    margin: 50px 0;
    padding: 0;
}

#results {
    visibility: hidden;
}

canvas {
    margin: 30px auto;
    display: block;
}

#new-game-button {
    float: right;
}