md`
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="filter1" class="filter">
<form action='#'>
<fieldset>
<legend>
<label>
<input type="checkbox" value="all" checked>
<span>Select All in Filter 1</span>
</label>
</legend>
<p>
<label>
<input type="checkbox" name="filter" value="v1" checked>
<span>F1: Value1</span>
</label>
</p>
<p>
<label>
<input type="checkbox" name="filter" value="v2" checked>
<span>F1: Value2</span>
</label>
</p>
<p>
<label>
<input type="checkbox" name="filter" value="v3" checked>
<span>F1: Value3</span>
</label>
</p>
<p>
<label>
<input type="checkbox" name="filter" value="v4" checked>
<span>F1: Value4</span>
</label>
</p>
</fieldset>
<input type="submit" value="Apply">
</form>
</div>
<div id="filter2" class="filter">
<form action='#'>
<fieldset>
<legend>
<label>
<input type="checkbox" value="all" checked>
<span>Select All in Filter 2</span>
</label>
</legend>
<p>
<label>
<input type="checkbox" name="filter" value="v1" checked>
<span>F2: Value1</span>
</label>
</p>
<p>
<label>
<input type="checkbox" name="filter" value="v2" checked>
<span>F2: Value2</span>
</label>
</p>
<p>
<label>
<input type="checkbox" name="filter" value="v3" checked>
<span>F2: Value3</span>
</label>
</p>
<p>
<label>
<input type="checkbox" name="filter" value="v4" checked>
<span>F2: Value4</span>
</label>
</p>
</fieldset>
<input type="submit" value="Apply">
</form>
</div>
`