.flex-container {
    display: flex;
    flex-flow: row wrap;
    justify-content: space-around;
}

.flex-container a {
    text-decoration: none;
    font-weight: bold;
    color: cornflowerblue;
    font-size: larger;

    border-radius: 50% 20% / 10% 40%;
    border: solid black 2px;
    padding: 1em;
    margin: 1em 2em;
}