.romptn-toc-summary-ui {
    box-sizing: border-box;
}

.romptn-toc-summary-ui * {
    box-sizing: border-box;
}

.romptn-highlight-marker {
    background: rgba(255, 235, 59, 0.6);
    padding: 0 2px;
    border-radius: 2px;
}