form.form-main{
    background-color:whitesmoke;
}

.form-label-group {
    position: relative;
    margin-bottom: 1rem;
  }
  
  .form-label-group > input,
  .form-label-group > label {
    height: 3.125rem;
    padding: .75rem
  }
  
  .form-label-group > label {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    margin-bottom: 0; /* デフォルトの `<label>` margin を上書き */
    line-height: 1.5;
    color: #495057;
    pointer-events: none;
    cursor: text; /* ラベルの下の入力と一致させる */
    border: 1px solid transparent;
    border-radius: .25rem;
    transition: all .1s ease-in-out;
  }
  
  .form-label-group input::-webkit-input-placeholder {
    color: transparent;
  }
  
  .form-label-group input:-ms-input-placeholder {
    color: transparent;
  }
  
  .form-label-group input::-ms-input-placeholder {
    color: transparent;
  }
  
  .form-label-group input::-moz-placeholder {
    color: transparent;
  }
  
  .form-label-group input::placeholder {
    color: transparent;
  }
  
  .form-label-group input:not(:placeholder-shown) {
    padding-top: 1.75rem;
    padding-bottom: 0.55rem;
  }
  
  .form-label-group input:not(:placeholder-shown) ~ label {
    padding-top: .25rem;
    padding-bottom: .25rem;
    font-size: 12px;
    color: #777;
  }
  
  /* Edge用フォールバック
  -------------------------------------------------- */
  @supports (-ms-ime-align: auto) {
    .form-label-group > label {
      display: none;
    }
    .form-label-group input::-ms-input-placeholder {
      color: #777;
    }
  }
  
  /* IE10-11用フォールバック
  -------------------------------------------------- */
  @media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    .form-label-group > label {
      display: none;
    }
    .form-label-group input:-ms-input-placeholder {
      color: #777;
    }
  }
  

  label.error {
    color: red;
    background-color:wheat;
    border: solid 1px red;
  }
  label.error:empty {
    display: none!important;
  }

  input.error {
    border: solid 2px red;

  }

  .invalid-feedback{
    color: red;
  }

  div.viewerrmsg:empty{
    display: none!important;
  }
  div.viewinfomsg:empty{
    display: none!important;
  }