I need the Button element to always take up 100% of the container, no matter how many elements are inside.
Check out my Fiddle link here: Js Fiddle Link
<div class="inputFieldBoolean buttonSeries" data-type="Boolean"><button class="true" data-value="1"><div class="sign"></div></button><button class="false" data-value="2"><div class="sign"></div></button><button class="notapplicable selected" data-value="3"><div class="sign"></div></button></div>
<div class="inputFieldBoolean buttonSeries" data-type="Boolean"><button class="true" data-value="1"><div class="sign"></div></button><button class="false" data-value="2"><div class="sign"></div></button></div>
<div class="inputFieldBoolean buttonSeries" data-type="Boolean"><button class="true" data-value="1"><div class="sign"></div></button></div>