<!-- required files -->
<script src="../assets/plugins/parsleyjs/dist/parsley.min.js"></script>

<form data-parsley-validate="true">
  <!-- alphanumeric string -->
  <input type="text" data-parsley-type="alphanum" />

  <!-- dropdown -->
  <select data-parsley-required="true">...</select>

  <!-- radio -->
  <input type="radio" data-parsley-required="true" />

  <!-- checkbox -->
  <input type="checkbox" data-parsley-mincheck="2" />

  <!-- reg expression -->
  <input type="text" data-parsley-pattern="#[A-Fa-f0-9]{6}" />
</form>