<template name="activities">
  <div class="page-heading">
    <button id="add-activity" class="btn btn-primary pull-right">
      {{_ "activities-addActivityButton" }}
    </button>
    <h1 class="page-header">
      <i class="fa fa-heartbeat"></i>&nbsp;
      {{_ "activities-pageHeader" }}
    </h1>
  </div>
  {{# if Template.subscriptionsReady }}
  <div class="panel panel-default">
    <div class="panel-heading">
      <h2 class="panel-title">
        {{_ "activities-filterActivities-heading" }}
        <button id="clear-filters" class="btn btn-xs btn-default pull-right">
          <i class="fa fa-times" aria-hidden="true"></i>
          {{_ "activities-filterActivities-clearFiltersText" }}
        </button>
      </h2>
    </div>
    <div class="panel-body">
      <div class="col-sm-3 col-xs-12">
        {{> activitiesTableResidentNamesFilter }}
      </div>
      <div class="col-sm-3 col-xs-12">
        {{> activitiesTableActivityTypeFilter }}
      </div>
    </div>
  </div>
  {{> reactiveTable collection='allActivities-paginated' settings=tableSettings }}
  {{ else }}
  {{> spinner }}
  {{/ if }}
</template>

<template name="activities">
  <div class="page-heading">
    <button id="add-activity" class="btn btn-primary pull-right">
      {{_ "activities-addActivityButton" }}
    </button>
    <h1 class="page-header">
      <i class="fa fa-heartbeat"></i>&nbsp;
      {{_ "activities-pageHeader" }}
    </h1>
  </div>
  {{# if Template.subscriptionsReady }}
  <div class="panel panel-default">
    <div class="panel-heading">
      <h2 class="panel-title">
        {{_ "activities-filterActivities-heading" }}
        <button id="clear-filters" class="btn btn-xs btn-primary pull-right">
          <i class="fa fa-times" aria-hidden="true"></i>
          {{_ "activities-filterActivities-clearFiltersText" }}
        </button>
      </h2>
    </div>
    <div class="panel-body">
      <div class="col-sm-3 col-xs-12">
        {{> activitiesTableResidentNamesFilter }}
      </div>
      <div class="col-sm-3 col-xs-12">
        {{> activitiesTableActivityTypeFilter }}
      </div>
    </div>
  </div>
  {{> reactiveTable collection='allActivities-paginated' settings=tableSettings }}
  {{ else }}
  {{> spinner }}
  {{/ if }}
</template>

Change clear filters button style
Change clear filters button style
