ul {
    list-style-type: none;
    margin: 10;
    padding: 10;
    overflow: hidden;
    /*background-color: #333;
    position: fixed;*/
    top: 0;
    width: 100%;
}

li {
    float: left;
}

li a {
    display: block;
        color: white;
        text-align: center;
        padding: 14px 16px;
        text-decoration: none;
}
li a:hover {
    background-color: red;
}
li a:hover:not(.active) {
    background-color: red;
}
* {box-sizing:border-box}
body {font-family: 'Quicksand', sans-serif;text-shadow: 2px 2px 8px blue,0px 0px 6px red;}
hr { 
    display: block;
    /*margin-top: 0px;
    margin-bottom: 3px;
    margin-left: 250px;
    margin-right: 250px;*/
    border-style: solid;
    /*border-width: 1px;*/
    color: white;
    width: 700px;
    text-align: center;

} 
body {
  background-image: url("back.jpg");background-size: 100%;
  justify-content: center;
  align-items: center;
}

.watch-face {
  height: 125px;
  width: 125px;
  animation: pulse 4s cubic-bezier(0.5, 0, 0.5, 1) alternate infinite;
}

.circle {
  height: 125px;
  width: 125px;
  border-radius: 50%;
  position: absolute;
  opacity: 0.75;
  transform: translate(0, 0);
  animation: center 6s infinite;
}

.circle:nth-child(odd) {
  background: #61bea2;
}

.circle:nth-child(even) {
  background: #529ca0;
}

.circle:nth-child(1) {
  animation: circle-1 4s ease alternate infinite;
}

.circle:nth-child(2) {
  animation: circle-2 4s ease alternate infinite;
}

.circle:nth-child(3) {
  animation: circle-3 4s ease alternate infinite;
}

.circle:nth-child(4) {
  animation: circle-4 4s ease alternate infinite;
}

.circle:nth-child(5) {
  animation: circle-5 4s ease alternate infinite;
}

.circle:nth-child(6) {
  animation: circle-6 4s ease alternate infinite;
}

@keyframes pulse {
  0% {
    transform: scale(.15) rotate(180deg);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes circle-1 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(-35px, -50px);
  }
}

@keyframes circle-2 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(35px, 50px);
  }
}

@keyframes circle-3 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(-60px, 0);
  }
}

@keyframes circle-4 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(60px, 0);
  }
}

@keyframes circle-5 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(-35px, 50px);
  }
}

@keyframes circle-6 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(35px, -50px);
  }
}