.border-double {
	--bd-width: 95%;
	--bd-height: 95%;
	
	position: relative;
}

.border-double::before,
.border-double::after {
  content: '';
  width: var(--bd-width);
  height: var(--bd-height);
  position: absolute;
  border: 2px solid #c19470;
  pointer-events: none;
  z-index: 2;
}

.border-double::before {
  top: 3px;           /* отступ от края контейнера */
  left: 3px;
}

.border-double::after {
  bottom: 5px;
  right: 5px;
}