body {
    display: -webkit-box;
    display: flex;
    -webkit-box-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    align-items: center;
    height: 100%;
}
.bbox-box {
    display: table;
    table-layout: fixed;
    overflow: hidden;
    max-width: 700px;
}
.bbox-left {
    display: table-cell;
    position: relative;
    margin-bottom: 0;
    border-width: 0;
    padding: 45px;
}
.bbox-left .form-group:last-child {
    margin-bottom: 0px;
}
.bbox-box .has-feedback.feedback-left .form-control {
    padding-left: 38px;
    padding-right: 12px;
}
.bbox-box .has-feedback.feedback-left .form-control-feedback {
    left: 0;
    right: auto;
    width: 38px;
    height: 38px;
    line-height: 38px;
    z-index: 4;
    color: #dcdcdc;
}
.bbox-box .has-feedback.feedback-left.row .form-control-feedback {
    left: 15px;
}
@media (max-width: 576px) {
  .bbox-right {
      display: none;
  }   
}