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;
}

#loading {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    position: fixed;
    display: block;
    opacity: 0.7;
    background-color: #000;
    z-index: 99;
    text-align: center;
}

#loading-image {
    position: absolute;
    top: 40vh;
    left: 100vh;
    z-index: 100;
}

@keyframes spinner {
    to {
        transform: rotate(360deg);
    }
}

.spinner:before {
    content: '';
    box-sizing: border-box;
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin-top: -10px;
    margin-left: -10px;
    border-radius: 50%;
    border: 2px solid #ccc;
    border-top-color: #333;
    animation: spinner .6s linear infinite;
}