JSFiddle - React, Tailwind, and code Playground

HTML

<input type="radio" name="type" value="customurl" 
onclick="document.getElementById('text').removeAttribute('disabled')">wanna custom url?
        <input type="text" id="text" name="custom" 
placeholder="should be 5 charecters at least" disabled>
        <br><br>
        <input type="radio" name="type" value="customurl" 
onclick="document.getElementById('sel').removeAttribute('disabled')">random?
        <select id="sel" name="charstype" disabled>
            <option>Letters</option>
            <option>Number</option>
        </select>