wp-calypso/packages/components/src/popover/style.scss

@import "@automattic/typography/styles/fonts";

/**
 * "popover" theme for `component/tip`.
 */

.popover {
	font-size: $font-body-extra-small;
	z-index: z-index("root", ".popover");
	position: absolute;
	top: 0;
	left: 0 #{"/*rtl:ignore*/"};
	right: auto #{"/*rtl:ignore*/"};

	.popover__inner {
		background-color: var(--color-surface);
		border: 1px solid var(--color-neutral-10);
		border-radius: 2px;
		box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1), 0 0 56px rgba(0, 0, 0, 0.075);
		text-align: center;
		position: relative;
	}

	.popover__arrow {
		border: 10px dashed var(--color-neutral-10);
		height: 0;
		line-height: 0;
		position: absolute;
		width: 0;
		z-index: z-index(".popover", ".popover .popover__arrow");
	}

	&.fade {
		transition: opacity 100ms;
	}

	@mixin popover__arrow( $side ) {
		$cross-side: "";
		$opposite-side: "";
		$cross-opposite-side: "";
		@if $side == "top" {
			$opposite-side: "bottom";
			$cross-side: "left";
			$cross-opposite-side: "right";
		} @else if $side == "bottom" {
			$opposite-side: "top";
			$cross-side: "left";
			$cross-opposite-side: "right";
		} @else if $side == "left" {
			$opposite-side: "right";
			$cross-side: "top";
			$cross-opposite-side: "bottom";
		} @else if $side == "right" {
			$opposite-side: "left";
			$cross-side: "top";
			$cross-opposite-side: "bottom";
		}

		&.is-#{$side} .popover__arrow,
		&.is-#{$side}-#{$cross-side} .popover__arrow,
		&.is-#{$side}-#{$cross-opposite-side} .popover__arrow {
			#{$opposite-side}: 0 #{"/*rtl:ignore*/"};
			#{$cross-side}: 50% #{"/*rtl:ignore*/"};
			margin-#{$cross-side}: -10px#{"/*rtl:ignore*/"};
			border-#{$side}-style: solid#{"/*rtl:ignore*/"};
			border-#{$opposite-side}: none#{"/*rtl:ignore*/"};
			border-#{$cross-side}-color: transparent#{"/*rtl:ignore*/"};
			border-#{$cross-opposite-side}-color: transparent#{"/*rtl:ignore*/"};

			&::before {
				#{$opposite-side}: 2px #{"/*rtl:ignore*/"};
				border: 10px solid var(--color-border-inverted);
				content: " ";
				position: absolute;
				#{$cross-side}: 50% #{"/*rtl:ignore*/"};
				margin-#{$cross-side}: -10px#{"/*rtl:ignore*/"};
				border-#{$side}-style: solid#{"/*rtl:ignore*/"};
				border-#{$opposite-side}: none#{"/*rtl:ignore*/"};
				border-#{$cross-side}-color: transparent#{"/*rtl:ignore*/"};
				border-#{$cross-opposite-side}-color: transparent#{"/*rtl:ignore*/"};
			}
		}
	}

	@include popover__arrow( "top" );
	@include popover__arrow( "bottom" );
	@include popover__arrow( "left" );
	@include popover__arrow( "right" );

	&.is-top-left,
	&.is-bottom-left,
	&.is-top-right,
	&.is-bottom-right {
		padding-right: 0;
		padding-left: 0;
	}

	&.is-top-left .popover__arrow,
	&.is-bottom-left .popover__arrow {
		left: auto #{"/*rtl:ignore*/"};
		right: 5px #{"/*rtl:ignore*/"};
	}

	&.is-top-right .popover__arrow,
	&.is-bottom-right .popover__arrow {
		left: 15px #{"/*rtl:ignore*/"};
	}

	// inner
	&.is-top .popover__inner,
	&.is-top-left .popover__inner,
	&.is-top-right .popover__inner {
		top: -10px #{"/*rtl:ignore*/"};
	}

	&.is-left .popover__inner,
	&.is-top-right .popover__inner,
	&.is-bottom-right .popover__inner {
		left: -10px #{"/*rtl:ignore*/"};
	}

	&.is-bottom .popover__inner,
	&.is-bottom-left .popover__inner,
	&.is-bottom-right .popover__inner {
		top: 10px #{"/*rtl:ignore*/"};
	}

	&.is-right .popover__inner,
	&.is-top-left .popover__inner,
	&.is-bottom-left .popover__inner {
		left: 10px #{"/*rtl:ignore*/"};
	}

	&.is-dialog-visible {
		z-index: z-index("root", "popover.is-dialog-visible"); /* Above .dialog */
	}
}