JSFiddle - React, Tailwind, and code Playground

HTML

<div class="panel">
    <div id="pnlStack" class="tab"><div>Name</div></div>
</div>

CSS

body
{
    font-family: Arial;
}
.panel
{
    position:absolute;
    top: 0px;
    bottom: 0px;
    left: -300px;
    width: 299px;
    border-right: 1px solid black;
}

.tab
{
    position: absolute;
    top: 10px;
    width: 16px;
    right: -16px;
    height: 75px;
    border-top: 1px solid black;
    border-bottom: 1px solid black;
    border-right: 1px solid black;
    cursor: default;
}

.tab div 
{
    position: relative;
    display: block;
    left: 1px;
    width: 75px;
    height: 15px;
    font-size: 14px;
    font-weight:normal;
    line-height: 15px;
    text-align: center;
    -moz-transform:rotate(-270deg); 
    -moz-transform-origin: bottom left;
    -webkit-transform: rotate(-270deg);
    -webkit-transform-origin: bottom left;
    -o-transform: rotate(-270deg);
    -o-transform-origin:  bottom left;
    filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=1);
}