是否有任何可能的方法来设置选择下拉列表，无论什么总是打开浏览器的底部

I have this page which display a certain select element at around the middle of the page, and everytime the select element is opened, it always opened towards the top of the browser, I know that this is because the space between the select element to the top of the browser is wider than the space between the select element to the bottom of the browser, however I would still like to set the select element to ALWAYS open towards the bottom of the browser. I have googled and search here, but nothing comes up.I have this page which display a certain select