positions?

Hi

just trying to add right position , to cars template

1.added to database right position

2.added to layout.tpl
<div class="{width section='content' position='right' tag='col-md-'}">
{ia_blocks block='right'}

3 added to install.xml
<section name="content">
<position fixed="1">left</position>
<position width="9">center</position>
<position fixed="1">right</position>
</section>

if open inspection view on web page it shows like that:
<div class="row">

<div class="hidden-xs hidden-sm">
<div class="col-md-3"> - ( this size of left column)


<div class="col-md-9"> - (this size of center column)
<div class="content__wrap">


<div class="col-md-0"> - ( and this one is right column all the time 0)
<div id="block_autos_calculator" class="box box--no-header box--border">

it showing right column but not on right position , but under all content

looks like changes in install.xml file not work, because i try change center column to 6, delete left one

still all the same

or may be need to add somewhere something else, to make it work

thank