healthchecks/static/css/admin/checks.css

/* The below rules are used in Django Admin */

.field-code {
    font-family: monospace;
    font-size: 80%;
}

.field-name_tags span {
    color: #555;
    background: #EEE;
    padding: 1px 4px;
    border-radius: 2px;
}