Layoutoption for section index (Feature Overview)

As an editor, I want to use the content element "Section index" in a new layout option

Content Element "Menu - Section Index" offers Layout "with blue background"

<style type="text/css">
	.metacatergory-feature-menu{
		background-image: linear-gradient(99deg, #538bb3, #426f8f);
		padding: 15px;
		margin-top:50px;
	}
	.metacatergory-feature-menu-link{
		color: #ffffff;
	}

</style>

Current HTML Code

<div class="metacatergory-feature-menu">
	<div class="container">
		<div class="row">
			<ul class="checked">
				<li>
					<a href="/cms/typo3-cms-new/features-draft/secure-performant-scalable/#c9215" class="metacatergory-feature-menu-link">Performance &amp; Scalability </a>
				</li>
				<li>
					<a href="/cms/typo3-cms-new/features-draft/secure-performant-scalable/#c9227" class="metacatergory-feature-menu-link">Security, Reliability, and Compliance </a>
				</li>
				<li>
					<a href="/cms/typo3-cms-new/features-draft/secure-performant-scalable/#c9251" class="metacatergory-feature-menu-link">Site Management, Updates, Upgrades, and Administration </a>
				</li>
				<li>
					<a href="/cms/typo3-cms-new/features-draft/secure-performant-scalable/#c9253" class="metacatergory-feature-menu-link">Hosting, System, and&nbsp;Environment </a>
				</li>
			</ul>
		</div>
	</div>	
</div>