title: XSLT Transform doesn't work until I remove root node
body: <p>I'm trying to extract the headline from the below XML from the Met Office web service using XSLT, however my XSLT select returns blank.</p>
  
  <p>SOURCE:</p>
  
  <pre><code>&lt;RegionalFcst xmlns="www.metoffice.gov.uk/xml/metoRegionalFcst" createdOn="2016-01-13T02:14:39" issuedAt="2016-01-13T04:00:00" regionId="se"&gt;
   &lt;FcstPeriods&gt;
    &lt;Period id="day1to2"&gt;
     &lt;Paragraph title="Headline:"&gt;Frosty start. Bright or sunny day.&lt;/Paragraph&gt;
     &lt;Paragraph title="Today:"&gt;A clear and frosty start in west, but cloudier in Kent with isolated showers. Then dry with sunny periods. Increasing cloud in west later will bring coastal showers with freshening southerly winds. Chilly inland, but less cold near coasts. Maximum Temperature 8C.&lt;/Paragraph&gt;
    &lt;/Period&gt;
   &lt;/FcstPeriods&gt;
  &lt;/RegionalFcst&gt;
  </code></pre>
  
  <p>My XSLT:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;xsl:stylesheet version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"&gt;
  &lt;xsl:template match="/"&gt;
    &lt;html&gt;
    &lt;body&gt;
     &lt;xsl:value-of select="FcstPeriods/Period/Paragraph"/&gt;
    &lt;/body&gt;
    &lt;/html&gt;
  &lt;/xsl:template&gt;
  &lt;/xsl:stylesheet&gt;
  </code></pre>
  
  <p>I've changed the root to <em>/RegionalFcst</em> and attempted other similar changes, such as adding a leading slash before FcstPeriods, but nothing works until I remove the first and last line from the source XML - then it works perfectly.</p>
  
  <p>This is fine in testing, but of course I want to use the web service provided by Met Office and that's how they present it.</p>
  
  <p>Any ideas?</p>