JSFiddle - React, Tailwind, and code Playground

HTML

<div class="triangle-left"></div>
<div class="activebox">
    <p>Active</p>
</div>

CSS

.activebox {
    display: inline-block;
    width: 40px;
    height: 16px;
    background-color: #47DA91;
}
.activebox p{
    display: table-cell;
}
.triangle-left {
    display: inline;
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-right: 10px solid #47DA91;
    border-bottom: 8px solid transparent;
    float: left;
}
.activebox p {
    color: white;
    font-size:11px;
    padding-left:5px;
    padding-bottom:5px;
}