></span>
<span class="line"><span class="LineNumber">   3 </span>    <span class="ResWord">if</span> <span class="ID">arg1</span><span class="Operator">:</span></span>
<span class="line"><span class="LineNumber">   4 </span>        <span class="ResWord">if</span> <span class="ID">arg1</span><span class="Operator">[</span><span class="Number">1</span><span class="Operator">]</span> <span class="Operator">==</span> <span class="String">'px'</span><span class="Operator">:</span></span>
<span class="line"><span