div class="row">
    <div class="col-md-6">
      <div class="card">
        <div class="card-header">
          Use the grid for big devices!
          <small>
            <code>.col-lg-*</code>
            <code>.col-md-*</code>
            <code>.col-sm-*</code>
          </small>
        </div>
        <div class="card-body">
          <form action="" method="post" class="form-horizontal ">
            <div class="form-group row">
              <div class="col-md-8">
                <input type="text" c