@import url("https://fonts.googleapis.com/css?family=Source+Serif+Pro");
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  display: flex;
  flex-wrap: wrap;
  font-family: "Source Serif Pro", serif;
  font-size: 16px;
  background: dodgerblue;
  counter-reset: spinnerCount;
}

.cell {
  width: 25%;
}
.cell .wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  height: 10rem;
  margin: 1rem 1rem 0;
  padding-top: 2.2rem;
  background: rgba(255, 255, 255, 0.2);
}
.cell .wrapper::after {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0.2rem;
  text-align: center;
  background: rgba(255, 255, 255, 0.25);
  /* Increment the section counter */
  counter-increment: spinnerCount;
  /* Display the counter on pseudo-elements */
  content: counter(spinnerCount);
}

.spinner {
  width: 4rem;
  height: 4rem;
}
.spinner.spinner1 {
  border: 3px solid rgba(255, 255, 255, 0.25);
  border-top-color: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  -webkit-animation: rotation .8s ease infinite;
          animation: rotation .8s ease infinite;
}
.spinner.spinner2 {
  border: 3px solid transparent;
  border-top-color: rgba(0, 0, 0, 0.5);
  border-bottom-color: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  -webkit-animation: rotation .8s ease infinite;
          animation: rotation .8s ease infinite;
}
.spinner.spinner3 {
  border-top: 3px solid rgba(0, 0, 0, 0.5);
  border-right: 3px solid transparent;
  border-radius: 50%;
  -webkit-animation: rotation .8s linear infinite;
          animation: rotation .8s linear infinite;
}
.spinner.spinner4 {
  background: rgba(0, 0, 0, 0.5);
  -webkit-animation: flip 1.2s ease infinite;
          animation: flip 1.2s ease infinite;
}
.spinner.spinner5 {
  margin-top: 2rem;
  overflow: hidden;
  position: relative;
  height: .5rem;
  background: rgba(255, 255, 255, 0.25);
}
.spinner.spinner5::before {
  content: '';
  position: absolute;
  left: -130%;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  -webkit-animation: progress 4s linear infinite;
          animation: progress 4s linear infinite;
}
.spinner.spinner6 {
  position: absolute;
  top: 45%;
  left: 50%;
  background: #fff;
  border-radius: 50%;
  -webkit-animation: pulse 1s ease-in-out infinite;
          animation: pulse 1s ease-in-out infinite;
  -webkit-transform: translate(-50%, -50%) scale(0);
          transform: translate(-50%, -50%) scale(0);
}
.spinner.spinner7 {
  position: relative;
}
.spinner.spinner7::before, .spinner.spinner7::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  -webkit-transform: translate(-50%, -50%) scale(0);
          transform: translate(-50%, -50%) scale(0);
}
.spinner.spinner7::before {
  background: #fff;
  -webkit-animation: pulse2 2s ease-in-out infinite;
          animation: pulse2 2s ease-in-out infinite;
}
.spinner.spinner7::after {
  background: #fff;
  -webkit-animation: pulse2 2s 1s ease-in-out infinite;
          animation: pulse2 2s 1s ease-in-out infinite;
}
.spinner.spinner8 {
  position: relative;
  -webkit-perspective: 200px;
          perspective: 200px;
}
.spinner.spinner8::before {
  display: block;
  content: '';
  width: 50%;
  height: 50%;
  background: rgba(0, 0, 0, 0.5);
  -webkit-animation: 2s flipWalker ease infinite;
          animation: 2s flipWalker ease infinite;
}

@-webkit-keyframes rotation {
  from {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  to {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}

@keyframes rotation {
  from {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  to {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}
@-webkit-keyframes flip {
  0% {
    -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg);
            transform: perspective(120px) rotateX(0deg) rotateY(0deg);
  }
  50% {
    -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(0deg);
            transform: perspective(120px) rotateX(-180deg) rotateY(0deg);
  }
  100% {
    -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-180deg);
            transform: perspective(120px) rotateX(-180deg) rotateY(-180deg);
  }
}
@keyframes flip {
  0% {
    -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg);
            transform: perspective(120px) rotateX(0deg) rotateY(0deg);
  }
  50% {
    -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(0deg);
            transform: perspective(120px) rotateX(-180deg) rotateY(0deg);
  }
  100% {
    -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-180deg);
            transform: perspective(120px) rotateX(-180deg) rotateY(-180deg);
  }
}
@-webkit-keyframes progress {
  0% {
    left: -130%;
    background: rgba(0, 0, 0, 0.5);
  }
  50% {
    left: 130%;
    background: rgba(0, 0, 0, 0.5);
  }
  51% {
    background: rgba(255, 255, 255, 0.5);
  }
  100% {
    background: rgba(255, 255, 255, 0.5);
  }
}
@keyframes progress {
  0% {
    left: -130%;
    background: rgba(0, 0, 0, 0.5);
  }
  50% {
    left: 130%;
    background: rgba(0, 0, 0, 0.5);
  }
  51% {
    background: rgba(255, 255, 255, 0.5);
  }
  100% {
    background: rgba(255, 255, 255, 0.5);
  }
}
@-webkit-keyframes pulse {
  0% {
    -webkit-transform: translate(-50%, -50%) scale(0);
            transform: translate(-50%, -50%) scale(0);
    opacity: 1;
  }
  100% {
    -webkit-transform: translate(-50%, -50%) scale(1);
            transform: translate(-50%, -50%) scale(1);
    opacity: 0;
  }
}
@keyframes pulse {
  0% {
    -webkit-transform: translate(-50%, -50%) scale(0);
            transform: translate(-50%, -50%) scale(0);
    opacity: 1;
  }
  100% {
    -webkit-transform: translate(-50%, -50%) scale(1);
            transform: translate(-50%, -50%) scale(1);
    opacity: 0;
  }
}
@-webkit-keyframes pulse2 {
  0%, 100% {
    -webkit-transform: translate(-50%, -50%) scale(0);
            transform: translate(-50%, -50%) scale(0);
    opacity: 1;
  }
  50% {
    -webkit-transform: translate(-50%, -50%) scale(1);
            transform: translate(-50%, -50%) scale(1);
    opacity: 0;
  }
}
@keyframes pulse2 {
  0%, 100% {
    -webkit-transform: translate(-50%, -50%) scale(0);
            transform: translate(-50%, -50%) scale(0);
    opacity: 1;
  }
  50% {
    -webkit-transform: translate(-50%, -50%) scale(1);
            transform: translate(-50%, -50%) scale(1);
    opacity: 0;
  }
}
@-webkit-keyframes flipWalker {
  0% {
    -webkit-transform: translate(0, 0) rotateX(0) rotateY(0);
            transform: translate(0, 0) rotateX(0) rotateY(0);
  }
  25% {
    -webkit-transform: translate(100%, 0) rotateX(0) rotateY(180deg);
            transform: translate(100%, 0) rotateX(0) rotateY(180deg);
  }
  50% {
    -webkit-transform: translate(100%, 100%) rotateX(-180deg) rotateY(180deg);
            transform: translate(100%, 100%) rotateX(-180deg) rotateY(180deg);
  }
  75% {
    -webkit-transform: translate(0, 100%) rotateX(-180deg) rotateY(360deg);
            transform: translate(0, 100%) rotateX(-180deg) rotateY(360deg);
  }
  100% {
    -webkit-transform: translate(0, 0) rotateX(0) rotateY(360deg);
            transform: translate(0, 0) rotateX(0) rotateY(360deg);
  }
}
@keyframes flipWalker {
  0% {
    -webkit-transform: translate(0, 0) rotateX(0) rotateY(0);
            transform: translate(0, 0) rotateX(0) rotateY(0);
  }
  25% {
    -webkit-transform: translate(100%, 0) rotateX(0) rotateY(180deg);
            transform: translate(100%, 0) rotateX(0) rotateY(180deg);
  }
  50% {
    -webkit-transform: translate(100%, 100%) rotateX(-180deg) rotateY(180deg);
            transform: translate(100%, 100%) rotateX(-180deg) rotateY(180deg);
  }
  75% {
    -webkit-transform: translate(0, 100%) rotateX(-180deg) rotateY(360deg);
            transform: translate(0, 100%) rotateX(-180deg) rotateY(360deg);
  }
  100% {
    -webkit-transform: translate(0, 0) rotateX(0) rotateY(360deg);
            transform: translate(0, 0) rotateX(0) rotateY(360deg);
  }
}