Individual form controls automatically receive some global styling. All textual <input>,
<textarea>, and <select> elements with .form-control are set to
width: 100%; by default. Wrap labels and controls in .form-group for optimum spacing.
Use Bootstrap's predefined grid classes to align labels and groups of form controls in a horizontal layout by adding
.form-horizontal to the form (which doesn't have to be a <form>). Doing so changes
.form-groups to behave as grid rows, so no need for .row.
Add .form-inline to your form (which doesn't have to be a <form>)
for left-aligned and inline-block controls. This only applies to forms within viewports
that are at least 768px wide.
