body {
    width: 80%;
    height: 80%;
    display: flex;
    margin: 0;
    padding: 10% 10%;
    align-items: center;
    justify-content: space-around;
}

.die {
    width: 50px;
    height: 50px;
    border: 1px solid black;
    font-family: monospace;
    font-size: xxx-large;
    text-align: center;
    transition: border-width 0.1s ease-out;
    flex-grow: 0;
    flex-shrink: 0;
    box-sizing: content-box;
    background: black;
    color: white;
}

.die:hover {
}

.selected { 
    color: red;
}


.one {
    color: red;
}

.two {
    color: limegreen;
}

.three {
    color: orange;
}

.four {
    color: aqua;
}

.five {
    color: yellow;
}

.six {
    color: deeppink;
}