JSFiddle - React, Tailwind, and code Playground

HTML

<table>
  <tr>
    <th>Nick</th>
    <th><span style="float: right">Wpłata</span></th>
  </tr>
  <tr>
    <td>Nick</td>
    <td><span style="float: right" class="prefix prefix szukam">0 zł</span></td>

CSS

table {
    font-family: arial, sans-serif;
    border-collapse: collapse;
    width: 100%;
}

td, th {
    border: 1px solid #dddddd;
    text-align: left;
    padding: 8px;
}

tr:nth-child(even) {
    background-color: #dddddd;
}

.prefix {
    color: #fff;
    display: inline-block;
    height: 15px;
    line-height: 15px;
    padding: 3px 5px;
    -moz-border-radius: 3px;
    -webkit-border-radius: 3px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: bold;
}

.prefix.szukam {
background: green;
}