.reactions-tipsy-content {
    max-width: 320px;
    font-size: 1.1em;
}
.reactions-tipsy-item:not(:last-child):not(.item-with-avatar)::after {
    content: ", ";
}
.reactions-tipsy-item a {
    font-weight: 700;
    color: #fff;
    text-decoration: none;
}
.reactions-tipsy-avatar {
    display: inline-block;
    width: 30px;
    height: 30px;
    margin: 5px;
    border-radius: 50%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}