Position Select Fields
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 Position Select fields give you a button group with various positioning options, which can be used to define how elements should be positioned in your templates.
#Settings

Position Select fields have the following settings:
- Options – Choose which options should be available in the field. Your choices include 
left,center,right,full,drop-left, anddrop-right. (The names are not customizable.) 
#The Field
Position Select fields will show a button group with icons representing each of the options you chose in the field’s settings.
#Templating
If you want to output the value directly, such as into a <div>’s class= attribute, you can do that like so:
<div class="block {{ entry.positionSelectFieldHandle }}">
You can also access the option’s value in conditionals:
{% if entry.positionSelectFieldHandle in ['left', 'right'] %}
  {# ... #}
{% elseif entry.positionSelectFieldHandle == 'center' %}
  {# ... #}
{% endif %}
Or you can feed it into a switch tag:
{% switch entry.positionSelectFieldHandle %}
  {% case 'left' %}
    {# ... #}
  {% case 'right' %}
    {# ... #}
  {% case 'center' %}
    {# ... #}
{% endswitch %}