This is what I write:
<select onchange="location = this.value;">
<option>Test</option> </select>
And the image is what I get. Why it duplicates itself? How can I solve it? I use bootstrap and here is the complete code of the page: This problem is the appearance of another select box which shoudn't happen. The code is composed of a single select box as you can see. But we see two select boxes. This is what the problem is.