#filter-form {
    border: 1px solid #ccc;
    border-radius: 5px;
    padding: 15px;
    background-color: whitesmoke;
    margin: 10px;

    .form-group {
        margin-bottom: 10px;

        .control-label {
            width: 15%;
        }
    
        .form-control {
            width: 85%;
            border-radius: 4px;
        }
    }
    .btn {
        float: right;
        margin: auto;
    }
}