Why are some fields output wrapped in div and others a span? I have been working with a View and I noticed an inconsistency in the way fields are output (unformatted list).

Most of the fields appear below their labels, but one (Post date) appears on the same line.

I looked at the source and I saw that the date was wrapped in a span and the other fields were wrapped in a div:

&lt;div class="views-field views-field-field-last-name"&gt;
    &lt;span class="views-label views-label-field-last-name"&gt;Last Name: &lt;/span&gt;
    &lt;div class="field-content"&gt;Thacker&lt;/div&gt;  
&lt;/div&gt;  
&lt;div class="views-field views-field-created"&gt;
    &lt;span class="views-label views-label-created"&gt;Post date: &lt;/span&gt;
    &lt;span class="field-content"&gt;Wednesday, April 9, 2014 - 14:39&lt;/span&gt;
&lt;/div&gt; 


Why is this happening?  Is it important for this to happen?  How can I change this so that everything is wrapped in a div?
If you click on a field in your view, you get the 'Configure Field' dialog. Look for "Style settings", because there you can customize the Field HTML, Label HTML and the wrapper. E.g. with 'Label HTML' option you can change the &lt;span&gt; to a &lt;div&gt;.