moodle/theme/boost/scss/moodle/tables.scss

.generaltable {
    width: 100%;
    margin-bottom: $spacer;
    color: $table-color;
    background-color: $table-bg; // Reset for nesting within parents with `background-color`.

    th,
    td {
        padding: $table-cell-padding;
        vertical-align: top;
        border-top: $table-border-width solid $table-border-color;
    }

    thead th {
        vertical-align: bottom;
        border-bottom: (2 * $table-border-width) solid $table-border-color;
    }

    tbody + tbody {
        border-top: (2 * $table-border-width) solid $table-border-color;
    }

    tbody tr:nth-of-type(#{$table-striped-order}) {
        background-color: $table-accent-bg;
    }
    &.table-sm {
        th,
        td {
            padding: $table-cell-padding-sm;
        }
    }
    tbody tr {
        @include hover {
            color: $table-hover-color;
            background-color: $table-hover-bg;
            &.dimmed_text {
                a:not(.menu-action) {
                    color: $table-hover-color;
                }
            }
        }
    }
}

table {
    caption {
        font-size: 24px;
        font-weight: bold;
        line-height: 42px;
        text-align: left;
        caption-side: top;
    }
}

.table-dynamic .loading-icon {
    position: absolute;
    left: calc(50% - 1.5rem);
    top: 200px;
    .icon {
        height: 3rem;
        width: 3rem;
        font-size: 3rem;
    }
}