Rocket.Chat/packages/rocketchat-ui/client/views/app/popover.html

<template name="popover">
	<div class="rc-popover rc-popover--{{popoverClass}}" data-popover="popover" style="display:block;">
		<div class="rc-popover__content">
			{{#each column in columns}}
				<div class="rc-popover__column">
					{{#each group in column.groups}}
						{{#if group.title}}
							<h3 class="rc-popover__title">{{group.title}}</h3>
						{{/if}}
						<ul class="rc-popover__list">
							{{#each item in group.items}}
							<li class="rc-popover__item rc-popover__item--{{item.class}}" data-type={{item.type}} data-id={{item.id.toLowerCase}} data-href={{item.href}} data-sidenav={{item.sideNav}}>
									{{#if item.icon}}
										<span class="rc-popover__icon">
											{{> icon block="rc-popover__icon-element" icon=item.icon }}
										</span>
									{{/if}}
									<span class="rc-popover__item-text">{{item.name}}</span>
								</li>
							{{/each}}
						</ul>
						<span class="rc-popover__divider"></span>
					{{/each}}
				</div>
			{{/each}}
		</div>
	</div>
</template>