Hi!
1. I just checked on your back-end, it’s width is set to 70%: http://i.imgur.com/3bUG5SV.png
If you change that to 100%, it will work.
2. You can try using a custom CSS like so:
[html]div[id*="ajaxsearchprores"] {
margin-top: 20px !important;
}[/html]