title: Finding/setting css line-height defaults
body: <p>One strange thing I've noticed when trying to normalize my css across browsers is that default line-height properties for h-elements and other major tag types are different across browsers like Chrome and Firefox, and yet are not set at the user-agent level:</p>
  
  <ul>
  <li><a href="http://codesearch.google.com/codesearch#OAMlx_jo-ck/src/third_party/WebKit/Source/WebCore/css/html.css">http://codesearch.google.com/codesearch#OAMlx_jo-ck/src/third_party/WebKit/Source/WebCore/css/html.css</a></li>
  <li><a href="http://mxr.mozilla.org/mozilla-central/source/layout/style/html.css">http://mxr.mozilla.org/mozilla-central/source/layout/style/html.css</a></li>
  </ul>
  
  <p>Moreover, popular normalizers like <a href="http://necolas.github.com/normalize.css/">normalize.css</a> don't take care of that either.</p>
  
  <p>So my question is two parts:</p>
  
  <ol>
  <li>If line-heights aren't set at the user agent level, where are the default values coming from?</li>
  <li>I'd rather not normalize line-heights myself, but if I have to, where is a good example of some defaults?</li>
  </ol>