Panel footer, background for the entire section - css

Question

I have a bootstrap panel where the height is automatically generated from a jquery script.
So, I would like to have the footer with a background for the entire section.
How can I achieve this goal ?
I don't want to fix the height for this section, is it possible to make something like :"height for the rest of your space in the panel".
Here the fiddle:
http://www.bootply.com/XBCffrO0My

Answer 1

Table layout approach
Idea is to have the element behave like a table and the child item as its row which would occupy the entire space.
Updated Bootply
#crud1 {
display: table;
width: 100%;
}
.panel-footer {
display: table-row;
height: 100%;
}
.panel-footer .row {
display: table-cell;
padding-top: 5px;
}
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<div class="col-md-4">
<div id="crud1" class="panel panel-primary" style="height: 248px;">
<div class="panel-heading clearfix">
<div class="pull-left">
ChartLine 1
</div>
<div class="pull-right">
<span class="label label-success">priusa2</span>
</div>
<div class="pull-right" style="padding-right: 7px;">
<span class="label label-success status"></span>
</div>
<p></p>
</div>
<!-- panel-heading closed -->
<div class="panel-body">
<div class="container-fluidrm">
No-picture
</div>
</div>
<!-- panel-body closed -->
<div class="panel-footer">
<div class="row" style="height: 100%;">
<div class="col-md-9">
<p>Description:</p>
</div>
<div class="col-md-1">
<a class="show-popup" href="#" id="poplink" data-showpopup="ChartLine 1"><span id="logos" class="material-icons"></span></a>
</div>
<div class="col-md-1" style="margin-left:7px;">
<span id="logos" class="glyphicon glyphicon-star"></span>
</div>
</div>
</div>
<!-- panel-footer closed -->
</div>
</div>
Flexible box approach
Give the child item flex: 1 to expand with the parent element.
Updated Bootply
#crud1 {
display: flex; /* Activate flexbox module layout */
flex-direction: column; /* Align items horizontally */
}
.panel-footer {
flex: 1; /* Expand with the parent */
}
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<div class="col-md-4">
<div id="crud1" class="panel panel-primary" style="height: 248px;">
<div class="panel-heading clearfix">
<div class="pull-left">
ChartLine 1
</div>
<div class="pull-right">
<span class="label label-success">priusa2</span>
</div>
<div class="pull-right" style="padding-right: 7px;">
<span class="label label-success status"></span>
</div>
<p></p>
</div>
<!-- panel-heading closed -->
<div class="panel-body">
<div class="container-fluidrm">
No-picture
</div>
</div>
<!-- panel-body closed -->
<div class="panel-footer">
<div class="row" style="height: 100%;">
<div class="col-md-9">
<p>Description:</p>
</div>
<div class="col-md-1">
<a class="show-popup" href="#" id="poplink" data-showpopup="ChartLine 1"><span id="logos" class="material-icons"></span></a>
</div>
<div class="col-md-1" style="margin-left:7px;">
<span id="logos" class="glyphicon glyphicon-star"></span>
</div>
</div>
</div>
<!-- panel-footer closed -->
</div>
</div>