<#macro left_column width=0>
	<#if width gt 0>
		<div class="left-column" style="width: ${width}px">
	<#else>
		<div class="column left-column">
	</#if>
		<#nested>
	</div>
</#macro>
<#macro right_column width=0>
	<#if width gt 0>
		<div style="width: ${width}px; padding: 0 0 0 ${width}px">
	<#else>
		<div class="column right-column">
	</#if>
		<#nested>
	</div>
</#macro>