input-not-disabled" type="text"></input>
        <br>
        <textarea id="textarea-disabled" disabled></textarea>
        <br>

        <h3>Alert section</h3>
        <button id="button-alert" onclick="alert('Hello!')">Show alert</button>

        <h3>Properties section</h3>
        <input id="input-property" value="val">

        <h3>Attributes section</h3>
        <input id="input-attr" type="text" value="hello" name="test" style="border: 5px; width: 150px;" disabled
               onclick="alert(123)" 