style.css

table.ps-table:not([data-ps-state="running"]) { filter: grayscale(100%); opacity: .5 }
table.ps-table:not([data-ps-accepting-input="true"]) { opacity: .8 }

table.ps-table:not(.ps-ui-disabled) {
    /* width: 90%; */
    width: 400px;

    border-spacing: 10px;
    border-collapse: collapse;
}
table.ps-table:not(.ps-ui-disabled) tr td.ps-cell {
    position: relative;
    padding: 0; /* it is 1px by default in Chromium */
}
table.ps-table:not(.ps-ui-disabled) td.ps-cell::after {
    content: '';
    display: block;
    margin-top: 100%;
}
table.ps-table:not(.ps-ui-disabled) .ps-cell-label {
    /* Move it off-screen so screenreaders read it but users do not see it */
    position: absolute;
    left:-9999px;
}

table.ps-table:not(.ps-ui-disabled) .ps-sprite-whole {
    /* to make it square (depends on styling for "ps-cell") */
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;

    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    width: 100%;
    height: 100%;
}
table.ps-table:not(.ps-ui-disabled) .ps-sprite-row {
    display: flex;
    flex-direction: row;
    flex-grow: 1;
    flex-wrap: nowrap
}
table.ps-table:not(.ps-ui-disabled) .ps-sprite-pixel { flex-grow: 1 }

table.ps-table.ps-ui-disabled tr td.ps-cell .ps-cell-label.ps-cell-empty {
    opacity: .25;
}

table.ps-table.ps-ui-disabled caption {
    caption-side: bottom;
    text-align: left;
}

table.ps-table:not(.ps-ui-disabled) caption,
table.ps-table:not(.ps-ui-disabled) [aria-live] {
    position: absolute;
    left: -10000px;
}