/*
 * Keep images inserted directly into long-text fields responsive.
 * CKEditor resize presets may set a percentage width; max-width prevents
 * original or fixed-width images from overflowing their content column.
 */
.field--type-text-long img,
.field--type-text-with-summary img,
.text-formatted img {
  max-width: 100%;
  height: auto;
}