body {
    font-family: sans-serif;
    text-align: center;
    display: grid;
    align-items: center;
    justify-content: center;
    overflow-x: auto;
}

#container {
    position: relative;
    max-width: 1200px;
}

td.tab {
    border: none;
}

.banner-container {
    padding: 1em;
}

.banner {
    padding: 2em;
    margin: 1em;
    display: grid;
}

.table-container {
    overflow-x: auto;
}

.tile-container {
    display: flex;
    flex-wrap: wrap;
    padding: 1em;
}

.tile {
    padding: 2em;
    margin: 1em;
    flex: 1 1 8em;
}

h2.tile-heading, h2.banner-heading {
    margin-top: 0;
    margin-bottom: 2em;
}

table.data {
    border: 2px solid;
    margin: 1em;
}

td {
    padding: 1em;
}

input.db-edit {
    max-width: 10em;
}

.error, .red {
    background-color: #e89d9d;
}

.overdue, .pink {
    background-color: #e99fd3;
}

.lent, .blue {
    background-color: #9fd3e9;
}

.available, .green {
    background-color: #d3e99f;
}

.proportion {
    display: inline;
}

.big {
    font-size: 3em;
}

.far {
    padding: 0.2em;
}