ul.timeline {
    list-style-type: none;
    position: relative;
}
ul.timeline:before {
    content: '';
    background: #d4d9df;
    display: inline-block;
    position: absolute;
    left: 80px;
    width: 2px;
    height: 100%;
    z-index: 400;
}
ul.timeline > li {
    margin: 30px 0;
    padding-left: 60px;
}
ul.timeline > li:before {
    background: white;
    display: inline-block;
    position: absolute;
    border-radius: 50%;
    left: 67px;
    width: 30px;
    height: 30px;
    z-index: 400;
    padding-left: 5px;
    padding-top: 2px;
    vertical-align: middle;
    font-weight: 600;
}

.timeline-left li {
    left: -130px;
}


li.timeline-sample:before {
    font-family: "Font Awesome 5 Free";
    content: "\f471";
    border: 3px solid blue;
}

li.timeline-user:before {
    font-family: "Font Awesome 5 Free";
    content: "\f007";
    border: 3px solid orange;
}

li.timeline-summary:before {
    font-family: "Font Awesome 5 Free";
    content: "\f2bb";
    border: 3px solid orange;
}
li.timeline-nodate:before {
    font-family: "Font Awesome 5 Free";
    content: "\f2bb";
    border: 3px solid red;
}
li.timeline-pills:before {
    font-family: "Font Awesome 5 Free";
    content: "\f484";
    border: 3px solid palegreen;
}

li.timeline-vial:before {
    font-family: "Font Awesome 5 Free";
    content: "\f492";
    border: 3px solid lightskyblue;
}

/* bootstrap hack: fix content width inside hidden tabs */
.tab-content > .tab-pane,
.pill-content > .pill-pane {
    display: block;     /* undo display:none          */
    height: 0;          /* height:0 is also invisible */
    overflow-y: hidden; /* no-overflow                */
}
.tab-content > .active,
.pill-content > .active {
    height: auto;       /* let the content decide it  */
} /* bootstrap hack end */

.input-red {
    background-color: #e4b9b9;
}

.input-yellow {
    background-color: #FFEFBF;
}

.input-blue {
    background-color: #BFEFFF;
}