.lecture {
    /*border-style: solid;*/
    border-style: hidden;
    border-width: 1px;
}

.lecture-red {
    background: #FFFBFB;
    border-color: #FFCCCC;
}

.lecture-green {
    background: #FBFFFB;
    border-color: #CCFFCC;
}

.lecture-blue {
    background: #FBFBFF;
    border-color: #CCCCFF;
}

.lecture-yellow {
    background: #FFFFF8;
    border-color: #FFFF80;
}

.lecture-purple {
    /* background: #FDFBFF; */
    /* border-color: #FBCCFF; */

    background: #FDFBFF;
    border-color: #EECCFF;
}

.lecture-brown {
    background: #fef7ef;
    /* background: #fff8ef; */

    /* border-color: #b85c00; */
    border-color: #fdbb79;
}