body{
    color: #444;
    font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
}    

h2, h3 {
    border-bottom: 1px dotted #555;
}

em{
    background-color: #FFF666;
}

a{
    color: #06F;
    text-decoration: none;
}
.info{
    background-color: #AFA;
    font-weight: bold;
}

.warn{
    background-color: #FCC;
    font-weight: bold;
}

.grade{
    color: green;
}