I'm create report with bootstrap element...https://postimg.org/image/nyoith02t/
Look is not good, how add bootstrap path on report, or inherit from other module?
My module location is odoo9 / custom_module / my_module (not in addons).
Create A Report With an Empty STYLE TAG.
<openerp>
<data>
<report
id="report_for_my_model"
model="myaddon.mymodel"
string="Report"
name="myaddon.report_view"
file="myaddon.report_for_my_model"
report_type="qweb-pdf"/>
<template id="report_view">
<style type="text/css">
</style>
<t t-call="report.html_container">
<t t-foreach="docs" t-as="doc">
<t>
<div class="page">
<!-- YOUR REPORT HERE -->
</div>
</t>
</t>
</t>
</template>
</data>
</openerp>
Then create another file and paste bootstrap's css inside it. I am not sure if you can use minified. You also may have to replace < with <
but I am not entirely sure. This technique works for simple css, I know that as I use it.
<openerp>
<data>
<template id="myaddon_bootstrap_style" inherit_id="myaddon.report_view">
<xpath expr="//style" position="after">
<style type="text/css">
/*
YOUR CSS HERE
*/
</style>
</xpath>
</template>
</data>
</openerp>