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;
}

.navbar-round-button {
    width: 200px;
    height: 60px;
    border-radius: 30px;
    border: outset;
    background-color: lightgreen;
    color: white;
    font-size: 18px;
    font-weight: 1000;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(44, 182, 201, 0.35);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

    /* hover animace */
    .navbar-round-button:hover {
        transform: translateY(-4px) scale(1.05);
        box-shadow: 0 12px 35px rgba(44, 182, 201, 0.5);
    }

    /* kliknutí */
    .navbar-round-button:active {
        transform: scale(0.95);
    }