woocommerce/plugins/woocommerce-blocks/assets/js/base/components/store-notices-container/style.scss

.wc-block-components-notices {
	display: block;
	margin-bottom: 2em;
	.wc-block-components-notices__notice {
		margin: 0;
		display: flex;
		flex-wrap: nowrap;
		.components-notice__dismiss {
			background: transparent none;
			padding: 0;
			margin: 0 0 0 0.5em;
			border: 0;
			outline: 0;
			color: #fff;
			svg {
				fill: #fff;
				vertical-align: text-top;
			}
		}
	}
	.wc-block-components-notices__notice + .wc-block-components-notices__notice {
		margin-top: 1em;
	}
}

.wc-block-components-notices__snackbar {
	position: fixed;
	bottom: 20px;
	left: 16px;
	width: auto;

	@include breakpoint( "<782px" ) {
		position: fixed;
		top: 10px;
		left: 0;
		bottom: auto;
	}

	.components-snackbar-list__notice-container {
		@include breakpoint( "<782px" ) {
			margin-left: 10px;
			margin-right: 10px;
		}
	}
}