@ionic/core/dist/collection/components/popover/popover.md.css

Base components for Ionic

:host {
  /**
   * @prop --background: Background of the popover
   * @prop --box-shadow: Box shadow of the popover
   *
   * @prop --min-width: Minimum width of the popover
   * @prop --width: Width of the popover
   * @prop --max-width: Maximum width of the popover
   *
   * @prop --min-height: Minimum height of the popover
   * @prop --height: Height of the popover
   * @prop --max-height: Maximum height of the popover
   *
   * @prop --backdrop-opacity: Opacity of the backdrop
   */
  --background: var(--ion-background-color, #fff);
  --min-width: 0;
  --min-height: 0;
  --max-width: auto;
  --height: auto;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  display: flex;
  position: fixed;
  align-items: center;
  justify-content: center;
  outline: none;
  color: var(--ion-text-color, #000);
  z-index: 1001;
}

:host(.overlay-hidden) {
  display: none;
}

.popover-wrapper {
  opacity: 0;
  z-index: 10;
}

.popover-content {
  display: flex;
  position: absolute;
  flex-direction: column;
  width: var(--width);
  min-width: var(--min-width);
  max-width: var(--max-width);
  height: var(--height);
  min-height: var(--min-height);
  max-height: var(--max-height);
  background: var(--background);
  box-shadow: var(--box-shadow);
  overflow: auto;
  z-index: 10;
}

.popover-viewport {
  --ion-safe-area-top: 0px;
  --ion-safe-area-right: 0px;
  --ion-safe-area-bottom: 0px;
  --ion-safe-area-left: 0px;
}

:host {
  --width: 250px;
  --max-height: 90%;
  --box-shadow: 0 5px 5px -3px rgba(0, 0, 0, 0.2), 0 8px 10px 1px rgba(0, 0, 0, 0.14), 0 3px 14px 2px rgba(0, 0, 0, 0.12);
  --backdrop-opacity: var(--ion-backdrop-opacity, 0.32);
}

.popover-content {
  border-radius: 4px;
  transform-origin: left top;
}
[dir=rtl] .popover-content, :host-context([dir=rtl]) .popover-content {
  transform-origin: right top;
}

.popover-viewport {
  transition-delay: 100ms;
}