html, body {
    height: 100%;
    display: flex;
    flex-direction: column;
}

section {
    flex: 1;
    padding-bottom: 60px;
}

footer {
    background-color: lightgray;
    text-align: center;
    padding: 10px;

    display: flex;
    align-items: center; /* Vertical */
    justify-content: center; /* Horizontal */
}

.all_cards {
    display: flex;
    align-items: stretch; /* Vertical */
    justify-content: space-between; /* Horizontal */
}

.all_cards > div {
    width: 32%;
}

.all_cards > div > div.card-header {
    text-align: center;
}

.all_cards > div > div.card-footer {
    display: flex;
    align-items: stretch; /* Vertical */
    justify-content: center; /* Horizontal */
}

.entity_list > div > div.card-header {
    text-align: right;
}

label {
    font-weight: bold;
}