def _inner_html(self):
rndrr_count = len(self.renderers)
if rndrr_count <= 3:
BOOTSTRAP_TOTAL_COLS = 12
col_size = int(BOOTSTRAP_TOTAL_COLS / rndrr_count)
else:
col_size = 'NULL'
return Template('''
<div class='horizontal-group-window'>
{% for rndr in renderers %}
<div class='col-sm-{{ col_size }}' style='display: inline-block;'>
{{ rndr.html() }}
</div>
{% endfor %}
</div>
''').render(renderers=self.renderers, css_id=self.css_id, title=self.title,
col_size=col_size)
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