woocommerce/plugins/woocommerce-blocks/assets/js/base/components/tabs/style.scss

.wc-block-components-tabs {
	.wc-block-components-tabs__list {
		display: flex;
		flex-direction: row;
		flex-wrap: wrap;
		width: 100%;
		> .wc-block-components-tabs__item {
			border: none;
			flex: auto;
			background: transparent;
			padding: $gap-small $gap;
			color: $black;
			outline-offset: -1px;
			text-align: center;
			transition: box-shadow 0.1s linear;
			box-shadow: inset 0 -2px $core-grey-light-600;
			&.is-active {
				box-shadow: inset 0 -3px $black;
				font-weight: 600;
				position: relative;
			}
			&:focus {
				color: $black;
				outline-offset: -1px;
				outline: 1px dotted $gray-60;
			}
			.wc-block-components-tabs__item-content {
				width: fit-content;
				display: inline-block;
				font-weight: bold;
				line-height: 1em;

				> img,
				> svg {
					height: 1.2em;
					vertical-align: middle;
					margin: 0.2em 0 -0.2em;
				}

				.wc-block-cart__payment-method-icons {
					margin: 0.2em 0 -0.2em;

					.wc-blocks-payment-method-icon {
						height: 1.2em;
						vertical-align: middle;
					}
				}
			}
		}
	}
	.wc-block-components-tabs__content {
		padding: $gap 0;
	}
}