JSFiddle - React, Tailwind, and code Playground

HTML

<form>
    <select required>
        
        <option value="sjaelland">Sjælland</option>
        <option value="jylland">Danmark</option>
        <option value="">- Hvor er du fra? -</option>
    </select>
    <br>
    <br>
    <button type="submit">Indsend</button>
</form>