edlp_d8/core/misc/dialog/off-canvas.motion.css

/**
 * @file
 * Motion effects for off-canvas dialog.
 *
 * Motion effects are in a separate file so that they can be easily turned off
 * to improve performance if desired.
 */

.dialog-off-canvas-main-canvas {
  transition: padding-right 0.7s ease, padding-left 0.7s ease, padding-top 0.3s ease;
}