I want a button to call another page inside a select. The problem is that using this code, the button is always outside the select.
<select>
<option>teste</option>
<option><input type=button value="Teste2"/></option>
</select>
Example: link
<option> elements do not accept HTML, text only. If you want to create a dropdown with visually more sophisticated options, you'll need to simulate your own <select> using other HTML elements plus JavaScript.
Maybe this jQuery plugin will solve for you: link
It is not possible to add a <button> within a select natively. You get this result with javascript by simulating a select.