Css Dropdown absolute doesnt show, but relative does - html

Question

I am trying to build a css dropdown.
I have the main dropdown (the first ul) with a position of relative, and the second dropdown with position as absolute.
But if I have it on absolute it does this:
and if I have it on relative I get this:
here is the markup:
<li class='active has-sub'>
<a href="#">
<div class="profile">
<img src="images/avatar.png" /> <span>Josh</span> <img src="images/arrow-down-dark.png" class="arrow_down" /><br />
</div>
</a>
<ul>
<li><span>Opt 1</span></li>
<li>Opt 2</li>
<li>Opt 3</li>
<li class='last'>Log out</li>
</ul>
</li>
and the css:
#cssmenu ul,
#cssmenu li,
#cssmenu span,
#cssmenu a {
margin: 0;
padding: 0;
position: relative;
z-index: 99;
}
#cssmenu .has-sub:hover > ul {
display: block;
}
#cssmenu .has-sub ul {
display: none;
position: relative;
width: 200px;
top: 100%;
left: 0;
}
** UPDATE **
ochi asked for more code, so I am going to post all the css code relating to the menu itself:
#cssmenu ul,
#cssmenu li,
#cssmenu span,
#cssmenu a {
margin: 0;
padding: 0;
position: relative;
}
#cssmenu {
line-height: 1;
border-radius: 5px 5px 0 0;
-moz-border-radius: 5px 5px 0 0;
-webkit-border-radius: 5px 5px 0 0;
width: auto;
}
#cssmenu:after,
#cssmenu ul:after {
content: '';
display: block;
clear: both;
}
#cssmenu a {
color: #000;
display: block;
font-family: Helvetica, Arial, Verdana, sans-serif;
padding: 12px 20px;
font-size: 14px;
text-decoration: none;
}
#cssmenu ul {
list-style: none;
}
#cssmenu > ul > li {
display: inline-block;
float: left;
margin: 0;
}
#cssmenu.align-center {
text-align: center;
}
#cssmenu.align-center > ul > li {
float: none;
}
#cssmenu.align-center ul ul {
text-align: left;
}
#cssmenu.align-right > ul {
float: right;
}
#cssmenu.align-right ul ul {
text-align: right;
}
#cssmenu > ul > li > a {
color: #ffffff;
font-size: 12px;
}
#cssmenu > ul > li:hover:after {
content: '';
display: block;
width: 0;
height: 0;
position: absolute;
left: 50%;
bottom: 0;
border-left: 10px solid transparent;
border-right: 10px solid transparent;
border-bottom: 10px solid #9c9c9c;
margin-left: -10px;
}
#cssmenu > ul > li.cssno {
color: #fff;
display: block;
font-family: Helvetica, Arial, Verdana, sans-serif;
padding: 12px 20px;
font-size: 14px;
text-decoration: none;
}
#cssmenu > ul > li.cssno:hover:after {
border-bottom: none;
}
#cssmenu > ul > li:first-child > a {
border-radius: 5px 0 0 0;
-moz-border-radius: 5px 0 0 0;
-webkit-border-radius: 5px 0 0 0;
}
#cssmenu.align-right > ul > li:first-child > a,
#cssmenu.align-center > ul > li:first-child > a {
border-radius: 0;
-moz-border-radius: 0;
-webkit-border-radius: 0;
}
#cssmenu.align-right > ul > li:last-child > a {
border-radius: 0 5px 0 0;
-moz-border-radius: 0 5px 0 0;
-webkit-border-radius: 0 5px 0 0;
}
#cssmenu > ul > li:hover > a {
color: #fff;
}
#cssmenu > ul > li.active > a {
color: #000;
}
#cssmenu .has-sub {
z-index: 1;
}
#cssmenu .has-sub:hover > ul {
display: block;
}
#cssmenu .has-sub ul {
display: none;
position: absolute;
width: 200px;
height: auto;
top: 100%;
left: 0;
z-index: 999999;
}
#cssmenu.align-right .has-sub ul {
left: auto;
right: 0;
}
#cssmenu .has-sub ul li {
*margin-bottom: -1px;
}
#cssmenu .has-sub ul li a {
background: #0fa1e0;
border-bottom: 1px dotted #31b7f1;
font-size: 11px;
display: block;
line-height: 120%;
color: #ffffff;
}
#cssmenu .has-sub ul li:hover a {
background: #0c7fb0;
}
#cssmenu ul ul li:hover > a {
color: #ffffff;
}
#cssmenu.align-right .has-sub .has-sub ul,
#cssmenu.align-right ul ul ul {
left: auto;
right: 100%;
}
#cssmenu ul ul li.last > a,
#cssmenu ul ul li:last-child > a,
#cssmenu ul ul ul li.last > a,
#cssmenu ul ul ul li:last-child > a,
#cssmenu .has-sub ul li:last-child > a,
#cssmenu .has-sub ul li.last > a {
border-bottom: 0;
}
and markup of the menu with the nav below it:
<header>
<div class="wrapper">
<section class="top_bar">
<div class="logo"><img src="images/activated_logo_dark.png"></div>
<div class="profile_info_meta" id="cssmenu">
<ul id="cssmenu">
<li>
<a href="#">
<div class="item bell">
<img src="images/bell.png" />
<p>7</p>
</div>
</a>
</li>
<li>
<a href="#">
<div class="item calendar">
<img src="images/calendar.png" />
<p>3</p>
</div>
</a>
</li>
<li class="cssno"><div class="item vertical_divider"></div></li>
<li class='active has-sub'>
<a href="#">
<div class="profile">
<img src="images/avatar.png" /> <span>Josh</span> <img src="images/arrow-down-dark.png" class="arrow_down" /><br />
</div>
</a>
<ul>
<li><span>Opt 1</span></li>
<li>Opt 2</li>
<li>Opt 3</li>
<li class='last'>Log out</li>
</ul>
</li>
</ul>
<div class="clearfix"></div>
</div>
</section>
</div> <!-- end of wrapper -->
<section class="nav">
<div class="wrapper">
<nav>
<ul>
<li>Dashboard</li>
<li>Referrals</li>
<li>Search</li>
<li>Events</li>
<li>Groups</li>
<li>News</li>
</ul>
</nav>
<div class="edit_profile">Edit Profile</div>
<div class="clearfix"></div>
</div> <!-- end of wrapper -->
</section> <!-- end of nav -->
</header>
When I use relative, it pushes the content down like this:
meanwhile it initially looked like this:

Answer 1

The CSS posted initially was enough to replicate the issue but the HTML wasn't.
I added this
<ul id="cssmenu">
...
</ul>
and it now works:
DEMO: JSFiddle
UPDATED: JSFiddle

Answer 2

with absolute position
give top and left in pixels not in %.

Answer 3

here #cssmenu not using as parent.,
u change like that
.has-sub:hover > ul {
display: block;
}
.has-sub ul {
display: none;
position: relative;
width: 200px;
top: 100%;
left: 0;
}
thank you!