<!DOCTYPE html>
<html>

  <head>
    <link data-require="bootstrap-css@3.3.1" data-semver="3.3.1" rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" />
    <link rel="stylesheet" href="style.css" />
  </head>

  <body>
    <div class="form-group row flex-v-center">
        <div class="col-xs-3 col-sm-2">
            <label for="from">Valid&nbsp;from</label>
        </div>
        <div class="col-xs-3">
            <p class="input-group">
              <input type="text" id="from" class="form-control"/>
              <span class="input-group-btn">
                <button type="button" class="btn btn-default"><i class="glyphicon glyphicon-calendar"></i></button>
              </span>
            </p>
        </div>
        <div class="col-xs-1 text-center">
            <label for="to">to</label>
        </div>
        <div class="col-xs-3">
            <p class="input-group">
              <input type="text" id="to" class="form-control"/>
              <span class="input-group-btn">
                <button type="button" class="btn btn-default"><i class="glyphicon glyphicon-calendar"></i></button>
              </span>
            </p>
        </div>
    </div>
    <div class="form-group row flex-v-center">
      <div class="col-xs-3 col-sm-2">
            <label for="another-input">Another&nbsp;Element</label>
        </div>
        <div class="col-xs-3">
            <input type="text" id="another-input" class="form-control"/>
        </div>
    </div>
  </body>

</html>
body {
  margin: 2em;
}

.flex-v-center {
    display: flex;
    align-items: center;
}
# Aligning bootstrap form elements in one line using bootstrap's grid

See http://paul.wellnerbou.de/2015/06/15/aligning-form-elements-in-one-line-using-bootstraps-grid/

Bootstrap's standard CSS for forms and inputs does support more than one input elements and labels in one line using [Bootstrap's CSS class form-inline](http://getbootstrap.com/css/#forms-inline).

The advantage of this approach over inline forms is the possibility to align input elements and their labels consistently over several lines at the same x-position. But you might (will) get more white space between your elements, especially on large screen, which you can avoid using inline forms.