body {
  background: #000;
}
@keyframes gradientBackground {
    0% {
        background: linear-gradient(45deg, rgba(255, 0, 0, 0.5), rgba(0, 255, 0, 0.5));
    }

    25% {
        background: linear-gradient(45deg, rgba(255, 255, 0, 0.5), rgba(0, 0, 255, 0.5));
    }

    50% {
        background: linear-gradient(45deg, rgba(128, 0, 128, 0.5), rgba(255, 165, 0, 0.5));
    }

    75% {
        background: linear-gradient(45deg, rgba(0, 255, 255, 0.5), rgba(255, 105, 180, 0.5));
    }

    100% {
        background: linear-gradient(45deg, rgba(75, 0, 130, 0.5), rgba(240, 128, 128, 0.5));
    }
}
.navbar-collapse.collapse {
    animation: gradientBackground 3s infinite alternate;
    transition: background 1s ease-in-out;
    background: linear-gradient(45deg, rgba(255, 0, 0, 0.5), rgba(0, 255, 0, 0.5));
}
.lightrope {
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    position: absolute;
    z-index: 100;
    margin: -15px 0 0 0;
    padding: 0;
    pointer-events: none;
    width: 100%;
}
.lightrope li {
  position: relative;
  -webkit-animation-fill-mode: both;
          animation-fill-mode: both;
  -webkit-animation-iteration-count: infinite;
          animation-iteration-count: infinite;
  list-style: none;
  margin: 0;
  padding: 0;
  display: block;
  width: 12px;
  height: 28px;
  border-radius: 50%;
  margin: 20px;
  display: inline-block;
  background: #00f7a5;
  box-shadow: 0px 4.6666666667px 24px 3px #00f7a5;
  -webkit-animation-name: flash-1;
          animation-name: flash-1;
  -webkit-animation-duration: 2s;
          animation-duration: 2s;
}
.lightrope li:nth-child(2n+1) {
  background: aqua;
  box-shadow: 0px 4.6666666667px 24px 3px rgba(0, 255, 255, 0.5);
  -webkit-animation-name: flash-2;
          animation-name: flash-2;
  -webkit-animation-duration: 0.4s;
          animation-duration: 0.4s;
}
.lightrope li:nth-child(4n+2) {
  background: #f70094;
  box-shadow: 0px 4.6666666667px 24px 3px #f70094;
  -webkit-animation-name: flash-3;
          animation-name: flash-3;
  -webkit-animation-duration: 1.1s;
          animation-duration: 1.1s;
}
.lightrope li:nth-child(odd) {
  -webkit-animation-duration: 1.8s;
          animation-duration: 1.8s;
}
.lightrope li:nth-child(3n+1) {
  -webkit-animation-duration: 1.4s;
          animation-duration: 1.4s;
}
.lightrope li:before {
  content: "";
  position: absolute;
  background: #222;
  width: 10px;
  height: 9.3333333333px;
  border-radius: 3px;
  top: -4.6666666667px;
  left: 1px;
}
.lightrope li:after {
  content: "";
  top: -14px;
  left: 9px;
  position: absolute;
  width: 52px;
  height: 18.6666666667px;
  border-bottom: solid #222 2px;
  border-radius: 50%;
}
.lightrope li:last-child:after {
  content: none;
}
.lightrope li:first-child {
  margin-left: -40px;
}

@-webkit-keyframes flash-1 {
  0%, 100% {
    background: #00f7a5;
    box-shadow: 0px 4.6666666667px 24px 3px #00f7a5;
  }
  50% {
    background: rgba(0, 247, 165, 0.4);
    box-shadow: 0px 4.6666666667px 24px 3px rgba(0, 247, 165, 0.2);
  }
}

@keyframes flash-1 {
  0%, 100% {
    background: #00f7a5;
    box-shadow: 0px 4.6666666667px 24px 3px #00f7a5;
  }
  50% {
    background: rgba(0, 247, 165, 0.4);
    box-shadow: 0px 4.6666666667px 24px 3px rgba(0, 247, 165, 0.2);
  }
}
@-webkit-keyframes flash-2 {
  0%, 100% {
    background: aqua;
    box-shadow: 0px 4.6666666667px 24px 3px aqua;
  }
  50% {
    background: rgba(0, 255, 255, 0.4);
    box-shadow: 0px 4.6666666667px 24px 3px rgba(0, 255, 255, 0.2);
  }
}
@keyframes flash-2 {
  0%, 100% {
    background: aqua;
    box-shadow: 0px 4.6666666667px 24px 3px aqua;
  }
  50% {
    background: rgba(0, 255, 255, 0.4);
    box-shadow: 0px 4.6666666667px 24px 3px rgba(0, 255, 255, 0.2);
  }
}
@-webkit-keyframes flash-3 {
  0%, 100% {
    background: #f70094;
    box-shadow: 0px 4.6666666667px 24px 3px #f70094;
  }
  50% {
    background: rgba(247, 0, 148, 0.4);
    box-shadow: 0px 4.6666666667px 24px 3px rgba(247, 0, 148, 0.2);
  }
}
@keyframes flash-3 {
  0%, 100% {
    background: #f70094;
    box-shadow: 0px 4.6666666667px 24px 3px #f70094;
  }
  50% {
    background: rgba(247, 0, 148, 0.4);
    box-shadow: 0px 4.6666666667px 24px 3px rgba(247, 0, 148, 0.2);
  }
}