woocommerce/plugins/woocommerce-admin/client/components/dropdown-button/style.scss

/** @format */

.woocommerce-page .woocommerce-dropdown-button {
	background-color: $white;
	position: relative;
	border: 1px solid $core-grey-light-500;
	color: $core-grey-dark-500;
	border-radius: 4px;
	padding: 0 40px 0 0;
	width: 100%;

	&::after {
		content: '';
		position: absolute;
		right: 14px;
		top: 50%;
		transform: translateY(-50%);
		width: 0;
		height: 0;
		border-style: solid;
		border-width: 6px 6px 0 6px;
		border-color: $core-grey-dark-500 transparent transparent transparent;
		transition: transform ease 0.2s;
	}

	&.is-open {
		&::after {
			transform: translateY(-50%) rotate(180deg);
		}
	}

	&:hover,
	&:active,
	&.is-open {
		background-color: $core-grey-light-100;
	}

	&.is-multi-line .woocommerce-dropdown-button__labels {
		flex-direction: column;
	}
}

.woocommerce-dropdown-button__labels {
	text-align: left;
	padding: 8px 12px;
	min-height: 48px;
	display: flex;
	align-items: center;
	width: 100%;
	justify-content: space-around;

	@include breakpoint( '<400px' ) {
		min-height: 46px;
	}

	span {
		width: 100%;
		text-align: left;

		&:last-child {
			@include font-size( 12 );
			margin: 0;
		}

		&:first-child {
			@include font-size( 13 );
			font-weight: 600;
		}

		@include breakpoint( '<400px' ) {
			&:last-child {
				@include font-size( 10 );
			}

			&:first-child {
				@include font-size( 12 );
			}
		}
	}
}