.background {
  position: absolute;
  height: 100vh;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  opacity: 0.6;
}

.loader span {
  color: #ffffff;
  text-shadow: 0 0 0 #12a99f;
  -webkit-animation: loading 1s ease-in-out infinite alternate;
}

@-webkit-keyframes loading {
  to {
    text-shadow: 20px 0 70px #12a99f;
    color: #6688a2;
  }
}

.loader span:nth-child(2) {
  -webkit-animation-delay: 0.1s;
}
.loader span:nth-child(3) {
  -webkit-animation-delay: 0.2s;
}
.loader span:nth-child(4) {
  -webkit-animation-delay: 0.3s;
}
.loader span:nth-child(5) {
  -webkit-animation-delay: 0.4s;
}
.loader span:nth-child(6) {
  -webkit-animation-delay: 0.5s;
}
.loader span:nth-child(7) {
  -webkit-animation-delay: 0.6s;
}
.loader span:nth-child(8) {
  -webkit-animation-delay: 0.7s;
}
.loader span:nth-child(9) {
  -webkit-animation-delay: 0.8s;
}

.loader span:nth-child(10) {
  -webkit-animation-delay: 0.9s;
}
.loader span:nth-child(11) {
  -webkit-animation-delay: 1s;
}
.loader span:nth-child(12) {
  -webkit-animation-delay: 1.1s;
}
.loader span:nth-child(13) {
  -webkit-animation-delay: 1.2s;
}
.loader span:nth-child(14) {
  -webkit-animation-delay: 1.3s;
}
.loader span:nth-child(15) {
  -webkit-animation-delay: 1.4s;
}
.loader span:nth-child(16) {
  -webkit-animation-delay: 1.5s;
}
.loader span:nth-child(17) {
  -webkit-animation-delay: 1.6s;
}
.loader span:nth-child(18) {
  -webkit-animation-delay: 1.7s;
}
.loader span:nth-child(19) {
  -webkit-animation-delay: 1.8s;
}
.loader span:nth-child(20) {
  -webkit-animation-delay: 1.9s;
}
.loader span:nth-child(21) {
  -webkit-animation-delay: 2s;
}
.loader span:nth-child(22) {
  -webkit-animation-delay: 2.1s;
}