div.session-running-coffee,
div.slot-in-memoriam,
div.slot-conclusions,
div.slot-lunch,
div.slot-social,
div.slot-coffee,
div.slot-break,
div.slot-dinner,
div.session-break
{
    background-color: #BED9AC; /* light background */
    color: #333;
}

div.session-standard,
div.session-default
{
    background-color: #4B6F33; /* dark background */
    color: white;
}

div.slot-welcome,
div.slot-conclusions,
div.session-keynote,
div.session-panel
{
    background-color: #1f3b0c; /* darker background */
    color: white;
}
div.slot-welcome > div.post-text > a,
div.slot-conclusions > div.post-text > a,
div.session-keynote div.post-text > a,
div.session-panel div.post-text > a {
    color: white;
}

div.session-parallel-default,
div.slot-technical,
div.slot-keynote,
div.slot-poster
{}

div.slot-poster > div.pre-text {
    font-weight: bold;
    border-bottom: solid;
    margin-bottom: 3ex;
}