weseek__growi/packages/remark-drawio/src/components/DrawioViewer.module.scss

.drawio-viewer {
  margin: 20px 0;
  border: 1px solid transparent;
  border-radius: 4px;
}

.drawio-viewer * {
  box-sizing: content-box;
}

// Revert host-page CSS that leaks into HTML rendered inside <foreignObject>.
// drawio sizes each cell using UA-default HTML metrics and clips overflow via
// an inline max-height wrapper, so non-default styles (e.g. line-height,
// margin from a wrapping `.wiki` ruleset) cause label content to be cut off.
//
// `!important` is required: host selectors such as `.wiki ol:not(.nav) li`
// outrank our scoped selector on specificity (`:not(.nav)` adds a class-level
// weight). Defending the foreignObject content is an adversarial cross-cutting
// concern, so we explicitly opt out of the specificity contest rather than
// chasing host selectors.
//
// See: https://github.com/growilabs/growi/issues/11052
.drawio-viewer foreignObject {
  h1, h2, h3, h4, h5, h6,
  p, ul, ol, li, blockquote,
  img, video, table {
    all: revert !important;
  }
}