gavinksong/cs169-cucec

div.lesson-icon {
    font-size: 100px;
}

.lesson-link {
    border-radius: 6px;
    border: 1px solid transparent;
    color: #111;
    margin: 10px;
}

.lesson-link:hover {
    filter: brightness(85%);
}

.lesson-link:active {
    filter: brightness(60%);
}

.lesson-link.green {
    background-color: #318B31;
}

.lesson-link.green .glyphicon {
    color: #8DCE8D;
}

.lesson-link.red {
    background-color: #AE3E3E;
}

.lesson-link.red .glyphicon {
    color: #FFAFAF;
}

.lesson-link.purple {
    background-color: #443378;
}

.lesson-link.purple .glyphicon {
    color: #8D81B3;
}

.lesson-link.blue {
    background-color: #2A5B99;
}

.lesson-link.blue .glyphicon {
    color: #6B91C1;
}

.lesson-link.yellow {
    background-color: #E1DC1A;
}

.lesson-link.yellow .glyphicon {
    color: #FFFB75;
}

.lesson-link.orange {
    background-color: #E1891A;
}

.lesson-link.orange .glyphicon {
    color: #FFC275;
}