Pure CSS vertical menu on the right n°4 with a pop up and a rounding error / layout: 3 columns - header

CSS for a vertical menu on the right with a rounding problem for Mozilla (before revision 1.8b4)

#zone_right .content p{font-size:.8em;margin-bottom:1em;}
#zone_right .content p.menu{margin-bottom:0;}

/*Start rounding error on the right with Mozilla*/
#zone_right .content p.menu a{
display:block;
line-height:1.9em;
margin:0;
}
/*End rounding error*/

#zone_right .content p.menu a{
background-color:#D2E1FB;
color:#0A00B0;
text-decoration:none;
text-indent:.5em;
}
#zone_right .content p.menu a:hover{
background-color:#A9CFFE;
color:#FFF;
}
* html #zone_right .content p.menu a{
height:1%;
}

Click on a menu to display its CSS code.
Hovering the menu will animate the links.

CSS / 3 columns / header / footer