Stacking Multiple Divs From Bottom to Top - html

Question

I am trying to align multiple divs (buttonNav) to the bottom of a container div (lowerNav). I have read every question on here regarding this and tried the CSS and it does not seem to work. I tried this one: Stacking Divs from Bottom to Top amoung others, hoping someone can help.
Here is my html, I have 5 of the lowerNav containers each with multiple buttonNavs that I want to align to the bottom of the lowerNav here is the code from one, they are all set up the same way:
<div class="lowerNav">
<img src="image/contact-us.gif" width="126" height="27" alt=""/>
<p>Ready to get more information or contact us directly?</p>
<div class="buttonNav">
<p>Order Literature</p>
</div>
<div class="buttonNav">
<p>Downloads</p>
</div>
<div class="buttonNav">
<p>Email Sign-Up</p>
</div>
<div class="buttonNav">
<p>Meet Your Rep</p>
</div>
<div class="buttonNav">
<p>Ask a Question</p>
</div>
</div>
Here is my CSS:
.lowerNav {
width: 160px;
height: 325px;
background-color: #e3dfd7;
border: 3px solid #383431;
float: left;
margin: 15px 8px 0px 8px;
text-align: left;
display: table-cell;
vertical-align: bottom;
}
.lowerNav p {
padding: 5px 12px 12px 12px;
}
.lowerNav img {
padding-top: 12px;
}
.buttonNav {
background:url(image/button-lowerNav.jpg);
width: 160px;
height: 45px;
display: inline-block;
}
.buttonNav p {
text-align:center;
padding-top: 14px;
}
.buttonNav a {
color: #fff;
font-size: 13px;
text-decoration:none;
font-weight:700;
}
.buttonNav a:hover {
color: #fff;
font-size: 13px;
text-decoration:underline;
font-weight:700;
}

Answer 1

Since the container (.lowerNav) has a fixed height and you know the size of its content this is quite easy to do with absolute positioning.
HTML:
<div class="outer">
Hello up here!
<ul class="inner">
<li>Hello</li>
<li>down</li>
<li>there!</li>
</ul>
</div>
CSS:
.outer {
position: relative;
height: 200px;
}
.inner {
position: absolute;
bottom: 0;
}
Check this CodePen for a live example of this code: http://codepen.io/EvilOatmeal/pen/fCzIv