.outlined-light-text {
    text-shadow: -1px -1px 0 black,
                 1px -1px 0 black,
                -1px  1px 0 black,
                 1px  1px 0 black;
}

.outlined-dark-text {
    text-shadow: -1px -1px 0 white,
                 1px -1px 0 white,
                -1px  1px 0 white,
                 1px  1px 0 white;
}