<h1>Check files</h1>

<div class="col-md-12">
  <!-- Nav tabs -->
  <ul class="nav nav-tabs" role="tablist">
    <li role="presentation" class="active"><a href="#file" aria-controls="file" role="tab" data-toggle="tab">Check local file</a></li>
    <li role="presentation" class=""><a href="#url" aria-controls="url" role="tab" data-toggle="tab">Check online file</a></li>
    <li role="presentation" class=""><a href="#repository" aria-controls="repository" role="tab" data-toggle="tab">Check local folder</a></l