JSFiddle - React, Tailwind, and code Playground

HTML

<fieldset id="fs1">
    <label>Name</label><input type="text" /><br />
    <label>Username</label><input type="text" />
</fieldset>
<hr />
<fieldset>
    <label>Password</label><input type="text" /><br />
    <label>Confirm Password</label><input type="text" />
</fieldset>
<hr />
<span style="color: #808080">Fixed with table:</span>
<fieldset>
    <table>
        <tr>
            <td><label>Password</label></td>
            <td><input type="text" /></td>
        </tr>
        <tr>
            <td><label>Confirm Password</label></td>
            <td><input type="text" /></td>
        </tr>
    </table>
</fieldset>

CSS

label
{
  display: block;
  float: left;
  min-width: 100px;
}

input[type="text"]
{
    margin-bottom: 5px;
    margin-left: 5px
}