/* Scale the shape preview images (injected via the operation description in
   ShapesDocumentFilter.InjectShapePreviewImage) down to 70% of their natural size.
   The Markdown image is rendered as <img alt="<Shape> preview" ...>, so we target
   any image whose alt text ends with "preview" to avoid affecting other UI images. */
img[alt$="preview"] {
    zoom: 0.7;            /* 70% of natural size (Chromium/Edge + modern Firefox) */
    max-width: 100%;     /* never overflow the description container */
    height: auto;
}