You are using bootstrap, and there would be more elegant ways of solving it, but here is one little hack.
You have some styles hard-coded into the html, and I would strongly suggest you remove those and put them into your css. Further; I would recommend that you create your own stylesheet, and use that for overrides from the Bootstrap stylesheet.
Anyway, here goes my little hack. As I said, it is not very elegant, but it is simple:
This is what you have; this is the structures of your divs:
Here is what you have to do:
in html, change
<form class="form-inline" role="form">
<form class="form-inline container" role="form">
Here is the result:
And then removing the guiding frames: