art-ui/Offset-class.html">Offset</a> or
<a href="dart-ui/Size-class.html">Size</a>, and returns true if both the horizontal and vertical values of the
left-hand-side operand are smaller than the horizontal and vertical values
of the right-hand-side operand respectively. Returns false otherwise.</p>
<p>This is a partial ordering. It is possible for two values to be neither
less, nor greater than, nor equal to, another.</p>
    </section>
    
    <section class="summary source-code" id="source">
      <h2><s