.node-type-event .group-event-details {
    border: solid 1px #ccc;
    border-width: 1px 0 1px 0;
    padding: 0.5em;
    margin-top: 2.5em;
}

.node-type-event .group-event-details legend {
    font-weight: bold;
    padding: 0 0.5em;
}

.node-type-event .group-event-details .field {
    margin-bottom: 0.5em;
}