The HR-tag.
This tag produces the horizontal line,
You see?In code it looks like this:
<HR>
As you can see no end tag is necessary.You can add the alignment, shadow, size and width.
<HR ALIGN="LEFT|CENTER|RIGHT">
Of course you can combine them.
<HR NOSHADE>
<HR SIZE="">
<HR WIDTH="">
Size gives the thickness of the line in pixel's,
and width can be in pixel's or in %.The standard is,
Align : center
width : 100%
size : 2