phantasmal-world/src/core/gui/Table.css

.core_Table {
    display: block;
    box-sizing: border-box;
    overflow: auto;
    background-color: var(--bg-color);
    border-collapse: collapse;
}

.core_Table tr {
    display: flex;
    align-items: stretch;
}

.core_Table thead tr {
    position: sticky;
    top: 0;
    z-index: 2;
}

.core_Table th,
.core_Table td {
    box-sizing: border-box;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 3px 6px;
    border-right: solid 1px var(--border-color);
    border-bottom: solid 1px var(--border-color);
    background-color: var(--bg-color);
}

.core_Table tbody {
    user-select: text;
    cursor: text;
}

.core_Table tbody th,
.core_Table tbody td {
    white-space: nowrap;
}

.core_Table tbody th {
    text-align: left;
}

.core_Table th.input {
    padding: 0;
    overflow: visible;
}

.core_Table th.input .core_DurationInput {
    z-index: 0;
    height: 100%;
    width: 100%;
    border: none;
}

.core_Table th.input .core_DurationInput:hover,
.core_Table th.input .core_DurationInput:focus-within {
    margin: -1px;
    height: calc(100% + 2px);
    width: calc(100% + 2px);
}

.core_Table th.input .core_DurationInput:hover {
    z-index: 4;
    border: var(--input-border-hover);
}

.core_Table th.input .core_DurationInput:focus-within {
    z-index: 6;
    border: var(--input-border-focus);
}