Zotero does a case-insensitive sort, so we will too.

>>===== MODE =====>>
bibliography
<<===== MODE =====<<



>>===== RESULT =====>>
<div class="csl-bib-body">
  <div class="csl-entry">The Civil Law</div>
  <div class="csl-entry">The civil life</div>
</div>
<<===== RESULT =====<<


>>===== CSL =====>>
<style 
      xmlns="http://purl.org/net/xbiblio/csl"
      class="note"
      version="1.0">
  <info>
    <id />
    <title />
    <updated>2009-08-10T04:49:00+09:00</updated>
  </info>
  <citation>
    <layout>
      <text value="dummy"/>
    </layout>
  </citation>
  <bibliography>
    <sort>
      <text variable="title"/>
    </sort>
    <layout>
      <text variable="title"/>
    </layout>
  </bibliography>
</style>
<<===== CSL =====<<


>>===== INPUT =====>>
[
    {
        "title": "The Civil Law",
        "id": "ITEM-1",
        "type": "book"
    },
    {
        "title": "The civil life",
        "id": "ITEM-2",
        "type": "book"
    }
]
<<===== INPUT =====<<


>>===== VERSION =====>>
1.0
<<===== VERSION =====<<