Problem about html tags

Question

for using video tag which way is correct?
(<video>
<source src=".." type="video/mpeg">
<video/>)
____________ or this:
(<video>
<source src=".." type="video/mpeg"/>
<video/>)
the difference is a "/" at the last part of source tag

Answer 1

The top one.
Source: http://www.w3schools.com/tags/tag_source.asp