woocommerce/plugins/woocommerce-admin/client/task-lists/progress-header/progress-header.scss

$progress-complete-color: #007cba;

.woocommerce-task-progress-header {
	position: relative;

	h1 {
		font-size: 24px;
	}
	p {
		color: $gray-700;
		font-size: 16px;
		line-height: 24px;
		margin-top: $gap-smaller;
	}

	.woocommerce-task-progress-header__progress-bar {
		-webkit-appearance: none;
		-moz-appearance: none;
		appearance: none;
		border: 1px solid #ddd;
		border-radius: 16px;
		height: 12px;
		width: 100%;
		margin-bottom: 0;

		// Firefox
		& {
			background-color: #fff;
		}

		&::-moz-progress-bar {
			background-color: $progress-complete-color;
			border-radius: 16px;
		}

		// Chrome
		&::-webkit-progress-bar {
			background-color: #fff;
			border-radius: 16px;
		}

		&::-webkit-progress-value {
			background-color: $progress-complete-color;
			border-bottom-left-radius: 16px;
			border-top-left-radius: 16px;
		}
	}

	.woocommerce-card__menu {
		position: absolute;
		right: 0;
		top: 7px;
	}
}