{content-layer:id=1}
{content-column:id=10|column=alternate|width=25%}
{content-block:id=100}
{content-block}
{content-column}
{content-column:id=20|column=alternate|width=25%}
{content-block:id=200}
{content-block}
{content-column}
{content-column:id=30|column=alternate|width=25%}
{content-block:id=300}
{content-block}
{content-column}
{content-column:id=40|column=alternate|width=25%}
{content-block:id=400}
{content-block}
{content-column}
{content-layer}
