a {
    outline: 0;
}
a.subject-button-link {
    color: #212529;
}
a.subject-button-link:hover {
    text-decoration: none;
}
a .rounded-circle {
    color: #212529;
}

.hidden {
    display: none;
}

.no-padding-right {
    padding-right: 0;
}
.no-padding-left {
    padding-left: 0;
}

#node_content ul {
    padding-left: 20px;
}

.content-image img {
    /* cf. https://stackoverflow.com/a/33420186 */
    max-width:100%;
    max-height:100%;
    height: auto;
    width:auto;
}

/* Small devices (landscape phones, 576px and up) */
@media (max-width: 575px) {
    .small-sm {
        font-size: 80%
    }
    .small-xs {
        font-size: 80%
    }
}