<div>

{{ content }}

</div>

{% elsif site.custom_theme.columns == “2” %} <div>

{{ content }}

</div>

{% elsif site.custom_theme.columns == “3” %} <div>

{{ content }}

</div>

{% else %} <h1>

custom_theme/columns not set in _config.yml <br>
Your theme settings in _config.yml are incorrect <br>
Current columns: {{ site.custom_theme.columns }}

</h1> {% endif %} </div>