<form method="GET" action="/result">
            Version:
            <select name="version" class="selectpicker form-control">
              {% for v in versions %}
                <option
                  value="{{ v.name }}"
                  {% if v.name == version.name %}
                    selected="selected"
                  {% endif %}>
                  {{ v.name }}
                </option>
              {% endfor %}
            </select> &nbsp;
            <input  name="keyword" placeholder="Search for a Word Sequence" value="{{ keyword }}">
            <button type="submit">Search</button>
          </form>
          <form method="GET" action="/case">
            <button
              type="submit"
              {% if caseSns %}
                class="btn-gradient dark-green mini"
              {% else %}
                class="btn-gradient green mini"
              {% endif %}>
              Case Sensitive
            </button>
            &nbsp;&nbsp;&nbsp; About the version:
            <a href="{{ version.wiki }}" target="_blank">{{ version.expansion }}</a>
          </form>
        </td>