html {
  font-size: 14px;
}

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

#top-navbar {
    display: block;
}

#bottom-navbar {
    display: none;
}

@media (max-width: 768px) {
    #top-navbar {
        display: none;
    }

    #bottom-navbar {
        display: flex;
    }
}

.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;
}


.bottom-navbar {
    position: fixed;
    bottom: 0;
    width: 100%;
    background-color: #333;
    display: flex;
    justify-content: space-around;
    padding: 0px;
    z-index: 1000;
}

.bottom-nav-link {
    color: white;
    text-align: center;
    flex-grow: 1;
    text-decoration: none;
    padding: 10px;
    font-size: 18px;
}

    .bottom-nav-link i {
        display: block;
        margin-bottom: 5px;
    }

    .bottom-nav-link:hover, .bottom-nav-link:focus, .bottom-nav-link.active {
        background-color: #555;
        color: white;
        outline: none;
    }

.content {
    padding: 20px;
    padding-bottom: 60px; /* height of the navbar */
}