JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li>item1 bla-bla-bla</li>
    <li>item2</li>
    <li>item3</li>
    <li>item4</li>
    <li>adf</li>
</ul>

CSS

ul {
    margin: 20px;
    padding: 20px 0 0 20px;
    list-style-type: none;
    line-height: 1.3;
    width: 100px;
    position: relative;
}

ul:before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0.6em;
    left: 0;
    border-left: 1px solid silver;
}

li {
    padding-left: 10px;
    position: relative;
}

li:before {
    content: qw; /*'\25cf';*/
    position: absolute;
    left: -5px;
    top: 0;
    z-index: 1;
}

li:after {
    content: '';
    position: absolute;
    top: 0.6em;
    width: 12px;
    left: -20px;
    border-top: 1px solid silver;
}