ul.bio {
    padding: 0;
    margin: 0;
    list-style-type: none;
    position: relative;
}

li.bio {
    list-style-type: none;
    border-left: 2px solid #666666;
    margin-left: 2em;
    white-space: nowrap;
}

li.bio div {
    padding-left: 1em;
    padding-top: 0.75em;
    position: relative;
    
}

li.bio > div::before {
    content:'';
    position: absolute;
    top: 0em;
    left: -2px;
    height:1em;
    width: 0.75em;
    border: 2px solid #666666;
    border-top: 0 none transparent;
    border-right: 0 none transparent;
}

ul li.bio:last-child {
    border-left: 2px solid transparent;
}

.norm {
    list-style-type: disc;
    border: none;
    top:0em;
}

li.nonbio {
    list-style-type: none;
    border-left: 2px dotted #666666;
    margin-left: 2em;
    white-space: nowrap;
}

li.nonbio div {
    padding-left: 1em;
    padding-top: 0.75em;
    position: relative;
    
}

li.nonbio > div::before {/* the '>' selector ensures *just* child, not further generation descendents*/
    content:'';
    position: absolute;
    top: 0em;
    left: -2px;
    height:1em;
    width: 0.75em;
    border: 2px dotted #666666;
    border-top: 0 none transparent;
    border-right: 0 none transparent;
}

ul li.nonbio:last-child {
    border-left: 2px solid transparent;
}