.filter-options {
  background-color: #f5f5f5;
  margin-top: 0;
  padding: $gutter-one-sixth $gutter-one-third;
  h2 {
    font-size: 19px;
  }
  .filter-grouping {
    border-top: 1px solid #ddd;
    padding: $gutter-one-sixth 0 $gutter-one-third 0;
    label,
    h3 {
      font-size: 14px;
      line-height: 27px;
      margin-bottom: 0;
      font-weight: bold;
    }

    input {
      @include border-radius(0);
      width: 95%;
      padding: 6px;
    }
    // to align btn-enter with input
    .btn-enter-wrapper {
      position: relative;
    }
    input.btn-enter {
      position: absolute;
      top: 4px;
      right: 3px;
      width: 50px;
      background: #999;
      color: white;
      border: none;
      @include border-radius(3px);
      margin: 0;
      padding: 3px;
    }

    select {
      width: 100%;
    }
  }
}

.filter-options {
  background-color: #f5f5f5;
  margin-top: 0;
  padding: $gutter-one-sixth $gutter-one-third;
  h2 {
    font-size: 19px;
  }
  .filter-grouping {
    border-top: 1px solid #ddd;
    padding: $gutter-one-sixth 0 $gutter-one-third 0;
    label,
    h3 {
      font-size: 14px;
      line-height: 27px;
      margin-bottom: 0;
      font-weight: bold;
    }

    input {
      width: 95%;
      padding: 6px;
    }
    // to align btn-enter with input
    .btn-enter-wrapper {
      position: relative;
    }
    input.btn-enter {
      position: absolute;
      top: 4px;
      right: 3px;
      width: 50px;
      background: #999;
      color: white;
      border: none;
      @include border-radius(3px);
      margin: 0;
      padding: 3px;
    }

    select {
      width: 100%;
    }
  }
}

Bring back filter input border radius
Bring back filter input border radius

* Match other form elements within app
