Форма для сайта на Bootstrap — стиль 8

Подробное описание и демонстрация работы блока «Формы» для сайта под номером №8 для библиотеки Bootstrap. Html и CSS код для реализации блока forms на сайте как на изображении.

<div class="form-bg">
    <div class="container">
        <div class="row">
            <div class="col-md-offset-3 col-md-6">
                <form class="form-horizontal">
                    <div class="header">Registration</div>
                    <div class="form-content">
                        <h4 class="heading">Your Details</h4>
                        <div class="form-group">
                            <div class="col-sm-6">
                                <label class="control-label" for="exampleInputName2"><i class="fa fa-user"></i></label>
                                <input class="form-control" id="exampleInputName2" placeholder="Username" type="text">
                            </div>
                            <div class="col-sm-6">
                                <label class="control-label" for="exampleInputName2"><i class="fa fa-envelope-o"></i></label>
                                <input class="form-control" id="exampleInputName2" placeholder="Email" type="email">
                            </div>
                        </div>
                        <div class="form-group">
                            <div class="col-sm-12">
                                <label class="control-label" for="exampleInputName2"><i class="fa fa-lock"></i></label>
                                <input class="form-control" id="exampleInputName2" placeholder="Phone" type="text">
                            </div>
                        </div>
                        <h4 class="heading">Registration Details</h4>
                        <div class="form-group">
                            <div class="col-sm-6">
                                <label class="control-label" for="exampleInputName2"><i class="fa fa-user"></i></label>
                                <input class="form-control" id="exampleInputName2" placeholder="Adults" type="number">
                            </div>
 
                            <div class="col-sm-6">
                                <label class="control-label" for="exampleInputName2"><i class="fa fa-user"></i></label>
                                <input class="form-control" id="exampleInputName2" placeholder="Children" type="number">
                            </div>
                        </div>
                        <div class="form-group">
                            <div class="col-sm-6">
                                <label class="control-label" for="exampleInputName2"><i class="fa fa-calendar"></i></label>
                                <input class="form-control" id="exampleInputName2" placeholder="Check-in date (dd/mm/yy)" type="text">
                            </div>
 
                            <div class="col-sm-6">
                                <label class="control-label" for="exampleInputName2"><i class="fa fa-calendar"></i></label>
                                <input class="form-control" id="exampleInputName2" placeholder="Check-out date (dd/mm/yy)" type="text">
                            </div>
                        </div>
                        <div class="form-group">
                            <div class="col-sm-12">
                                <label class="control-label" for="exampleInputName2"><i class="fa fa-calendar"></i></label>
                                <textarea class="form-control" placeholder="Additional Message"></textarea>
                            </div>
                        </div>
                        <div class="clearfix">
                            <button type="submit" class="btn btn-default"> Register</button>
                        </div>
                    </div>
                </form>
            </div>
        </div>
    </div>
</div>

.form-bg{
    background: #e4e6e6;
}
form{
    font-family: 'Roboto', sans-serif;
}
.form-horizontal .header{
    background: #3f9cb5;
    padding: 30px 25px;
    font-size: 30px;
    color: #fff;
    text-align: center;
    text-transform: uppercase;
    border-radius: 3px 3px 0 0;
}
.form-horizontal .heading{
    font-size: 16px;
    color: #3f9cb5;
    margin: 10px 0 20px 0;
    text-transform: capitalize;
}
.form-horizontal .form-content{
    padding: 25px;
    background: #fff;
}
.form-horizontal .form-control{
    padding: 12px 16px 12px 39px;
    height: 50px;
    font-size: 14px;
    color: #2b2a2a;
    border: none;
    border-bottom: 2px solid #ccc;
    border-radius: 0;
    box-shadow: none;
    margin-bottom: 15px;
}
.form-horizontal .form-control:focus{
    border-color: #3f9cb5;
    box-shadow: none;
}
.form-horizontal .control-label{
    font-size: 17px;
    color: #ccc;
    position: absolute;
    top: 5px;
    left: 27px;
    text-align: center;
}
.form-horizontal textarea.form-control{
    resize: vertical;
    height: 130px;
}
.form-horizontal .btn{
    font-size: 18px;
    color: #4e4e4e;
    float: right;
    margin: 10px 0;
    border: 2px solid #ccc;
    border-radius: 0;
    padding: 10px 25px;
    transition: all 0.5s ease 0s;
}
.form-horizontal .btn:hover{
    background: #fff;
    border-color: #3f9cb5;
}