html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}

/* ローディング画像 */
#_loading {
    display: table;
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: #fff;
    opacity: 0.8;
    z-index: 99999;
}

    #_loading ._loading_msg {
        display: table-cell;
        text-align: center;
        vertical-align: middle;
        padding-top: 140px;
        background: url("../img/spinner.gif") center center no-repeat;
    }