JSFiddle - React, Tailwind, and code Playground

HTML

<label>
    <input type="checkbox" name="test" />
    <span>I accept terms and cons</span><br><br>
    <button>Great!</button>
</label>

CSS

button { display: none}

:checked ~ button {
    font-style: italic;
    color: green;  
    display: inherit;
}