css - Align relative positioned div to bottom of other - css

Question

I've the following:
HTML (partial):
<div id="page">
<div id="header">
<div id="logo">
<img src="logo.jpg" alt="Logo" />
</div>
<div id="menu">
<ul>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
<!-- how many <li>s as need -->
</ul>
</div>
</div>
<div id="content">
</div>
<div id="footer">
</div>
</div>
CSS:
html, body {
min-height: 100%;
}
#page {
position: absolute;
right: 0;
width: 97%;
height: 100%;
overflow-y: auto;
text-align: center;
}
#header {
position: relative;
height: auto;
min-width: 100%;
margin: 10px auto 0 auto;
display: inline-block;
overflow-x: hidden;
}
#header #logo {
float: left;
}
#header #menu ul {
list-style-type: none;
}
#header #menu ul li {
height: 2em;
line-height: 2em;
}
#content {
position: relative;
margin: 20px auto 0 auto;
width: 95%;
}
#footer {
position: relative;
margin-top: 20px;
width: 100%;
height: 260px;
}
Explaining:
There is a container div (#page). Within it there are #header, #content and #footer.
#header space is split horizontally between #logo and #menu.
The problem:
I need to position #menu at bottom of #header but yet at side of #logo. I'm not getting it without break layout. How can I do this?
When new menu items be added, they should make menu go up, not down, this is why I need to do what I said above. The fist image below illustrates how I want to do and second how it actually is (lighter parts are within the darker and yes, it is a mobile layout):
First Image:
Second Image:
And please, no JavaScript, just pure CSS.
Thanks for attention, bye.

Answer 1

try changing display property of the #header to table, display of the #logo and #menu to 'table-cell' and verticaly align them to the bottom - it should do what you need
#header {
position: relative;
height: auto;
min-width: 100%;
margin: 10px auto 0 auto;
display: table;
overflow-x: hidden;
}
#logo {
display:table-cell;
vertical-align:bottom;
}
#menu {display:table-cell; vertical-align:bottom;}
selector in your css #header #logo is too much because identifiers cannot duplicate so #logo is really enough
here is working example: http://jsfiddle.net/6xBvR/1/

Answer 2

Add position:absolute; and bottom:0px; to #header #logo:
#header #logo {
float: left;
position: absolute;
bottom: 0px;
}
Should fix your problem. You could also truncate #header #logo to just #logo.

Answer 3

I wouldn't use float, I'd use display:inline-block and vertical-align:bottom
#logo {
display: inline-block;
vertical-align:bottom;
}
#menu {
display: inline-block;
vertical-align:bottom;
}
But you will need to set some widths.
I alos needed to remove padding from the ul
#menu ul {margin-bottom:0px}
Example: http://jsfiddle.net/pLeUD/