Why my page us not styling using bootstrap?

I am trying to use Laravel 5.1. I included bootstrap 3.3.5 on the top. Then I created a div with a class of "container".

I used the css like this

<div class="form-group">

    <label for="control_3">Tell me about your self</label>

    <textarea class="form-control" name="control_3" cols="50" rows="10" id="control_3"></textarea>

</div>

I am sure the Css and the .js for bootstrap are included as I validated that using my page's source code.

But the page still looks bad "not using styling"

What would be the cause off this?

via Chebli Mohamed