@event-calendar/core/src/styles/slots.css

Full-sized drag & drop event calendar with resource & timeline views

.ec-slot {
    white-space: nowrap;

    .ec-time-grid & {
        block-size: calc(var(--ec-slot-height) * var(--ec-slot-label-periodicity));
        position: relative;
        inset-block-start: -.5lh;
    }

    .ec-timeline & {
        grid-column: span var(--ec-slot-label-periodicity);
        font-size: .95em;
        padding: .18rem 0;
        overflow: clip;
        text-overflow: ellipsis;
    }
}

.ec-slots {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: var(--ec-slot-width);
    text-align: center;

    --ec-day-bg-color: var(--ec-bg-color);
    background-color: var(--ec-day-bg-color);
    border-block-end: 1px solid var(--ec-border-color);

    &.ec-today {
        --ec-day-bg-color: var(--ec-today-bg-color);
    }

    &.ec-highlight {
        --ec-day-bg-color: var(--ec-highlight-color);
    }

    --ec-last-line-color: transparent;
    --ec-direction: to left;
    [dir="rtl"] & {
        --ec-direction: to right;
    }
    background-image:
            linear-gradient(var(--ec-direction), var(--ec-last-line-color) 1px, transparent 1px),
            linear-gradient(var(--ec-direction), var(--ec-border-color) 1px, transparent 1px);
    background-size:
            100% 100%,
            calc(var(--ec-slot-width) * var(--ec-slot-label-periodicity)) 100%;

    &:last-child {
        --ec-last-line-color: var(--ec-day-bg-color);
    }
}