table {
    border-collapse: collapse;
    border-spacing: 0;
    }

#schedule {
    border-collapse: collapse;
    align-self: center;
    margin-left: auto;
    margin-right: auto;
}

#schedule td, #schedule th {
    border-bottom: 1px solid #ddd;
    padding: 8px;
    text-align: center;
    vertical-align: middle;
}

tr {
    height: 3em;
}

.narrow {
    height: 2em;
}

.wide {
    height: 4em;
}

#schedule th {
    font-family: 'Verdana';
    text-align: left;
    background: #8b8b8b;
    color: #fff;
    font-size: 100%;
    line-height: 1.5em;
}

.event {
    background: #f6aba2;
}

.conference {
    background: #f9d4c1;
}

.lecture {
    background: #b1dbf7;
}

.lecture-students {
    background: #d9d2e9
}

.seminar {
    background: #D9EAD3;
}

.break {
    background: #f0f0f0;
}

.info {
    position: relative;
    display: inline-block;
    border-bottom: 1px dotted black;
}

.info .tooltip {
    visibility: hidden;
    width: 25vw;
    color: black;
    text-align: center;
    padding: 5px 0;
    position: absolute;
    z-index: 1;
    border:1px solid black;
    top: 100%;
    left: 50%;
    margin-left: -60px;
    background-color:white;
}

.info:hover .tooltip {
    visibility: visible;
    opacity: 1;
}

.tooltip-title {
    font-weight: bold;
}