grafana/public/app/partials/valueSelectDropdown.html

<div class="variable-link-wrapper">
	<a ng-click="vm.show()" class="variable-value-link tight-form-item">
		{{vm.linkText}}
		<span ng-repeat="tag in vm.selectedTags" bs-tooltip='tag.valuesText' data-placement="bottom">
			<span class="label-tag"tag-color-from-name="tag.text">
				&nbsp;&nbsp;<i class="fa fa-tag"></i>&nbsp;
				{{tag.text}}
			</span>
		</span>
		<i class="fa fa-caret-down"></i>
	</a>

	<input type="text" class="tight-form-clear-input input-small" style="display: none" ng-keydown="vm.keyDown($event)" ng-model="vm.search.query" ng-change="vm.queryChanged()" ></input>

	<div class="variable-value-dropdown" ng-if="vm.dropdownVisible" ng-class="{'multi': vm.variable.multi, 'single': !vm.variable.multi}">
		<div class="variable-options-wrapper">
			<div class="variable-options-column">
				<a class="variable-options-column-header" ng-if="vm.variable.multi" ng-class="{'many-selected': vm.selectedValues.length > 1}" bs-tooltip="'Clear selections'" data-placement="top" ng-click="vm.clearSelections()">
					<span class="variable-option-icon"></span>
					Selected ({{vm.selectedValues.length}})
				</a>
				<a class="variable-option pointer" bindonce ng-repeat="option in vm.search.options" ng-class="{'selected': option.selected, 'highlighted': $index === vm.highlightIndex}" ng-click="vm.selectValue(option, $event)">
					<span class="variable-option-icon"></span>
					<span>{{option.text}}</span>
				</a>
			</div>
			<div class="variable-options-column" ng-if="vm.tags.length">
				<div class="variable-options-column-header text-center">
					Tags
				</div>
				<a class="variable-option-tag pointer" ng-repeat="tag in vm.tags" ng-click="vm.selectTag(tag, $event)" ng-class="{'selected': tag.selected}">
					<span class="fa fa-fw variable-option-icon"></span>
					<span class="label-tag" tag-color-from-name="tag.text">{{tag.text}}&nbsp;&nbsp;<i class="fa fa-tag"></i>&nbsp;</span>
				</a>
			</div>
		</div>
	</div>
</div>