Form Field Alignment using CSS

Using Bootstrap4.css

    <fieldset class="form-horizontal">

        <div class="form-group">
            <div class="col-md-3">

            </div>
            <div class="col-md-3">

            </div>
            <div class="col-md-3">

            </div>
            <div class="col-md-3">
               
            </div>
        </div>

        <div class="form-group">
            <div class="col-md-12">
 
            </div>
        </div>

        <div class="form-group">
            <div class="col-md-2 col-md-offset-10">

            </div>
        </div>

    </fieldset>