section {
  padding-top: 0;
  padding-bottom: 0;
}

.bg-200, .bg-201, .bg-202, .bg-203, .bg-204 {
  background-color: #198754;
}

.bg-300, .bg-301, .bg-302, .bg-303, .bg-304 {
  background-color: #46afe8;
}

.bg-400, .bg-401, .bg-402, .bg-403, .bg-404 {
  background-color: #ffc107;
}

.bg-500, .bg-501, .bg-502, .bg-503, .bg-504 {
  background-color: #dc3545;
}

/*
 * Loading Dots
 * Can we use pseudo elements here instead :after?
 */
#loading {
    text-align: center;
    display: none;
}

#loading > h3 {
    text-transform: uppercase;
    font-size: 21px;
}

#loading > h5 {
    text-transform: lowercase;
    font-size: 15px;
    color: #8a8a8a;
    margin-bottom: 30px;
}

 #loading span {
    display: inline-block;
    vertical-align: middle;
    width: .9em;
    height: .9em;
    margin: .19em;
    background: #007DB6;
    border-radius: .6em;
    animation: loading 1s infinite alternate;
  }
  
  /*
   * Dots Colors
   * Smarter targeting vs nth-of-type?
   */
  #loading span:nth-of-type(2) {
    background: #008FB2;
    animation-delay: 0.2s;
  }
  #loading span:nth-of-type(3) {
    background: #009B9E;
    animation-delay: 0.4s;
  }
  #loading span:nth-of-type(4) {
    background: #00A77D;
    animation-delay: 0.6s;
  }
  #loading span:nth-of-type(5) {
    background: #00B247;
    animation-delay: 0.8s;
  }
  #loading span:nth-of-type(6) {
    background: #5AB027;
    animation-delay: 1.0s;
  }
  #loading span:nth-of-type(7) {
    background: #A0B61E;
    animation-delay: 1.2s;
  }
  
  /*
   * Animation keyframes
   * Use transition opacity instead of keyframes?
   */
  @keyframes loading {
    0% {
      opacity: 0;
    }
    100% {
      opacity: 1;
    }
  }