<div class="background">
  <p>animated background</p>
  <div class="elements">
    <div class="square sq1"></div>
    <div class="square sq2"></div>
    <div class="square sq3"></div>
  </div> 
</div>

body {
  margin: 0;
}

/* ====================
    Background
=======================*/

.background {
  width: 100vw;
  height: 100vh;
  animation: pulse 5s infinite;
  overflow: hidden;
}

@keyframes pulse {
  0% {background: #d10053;}
  50% {background: #cc145e;}
  100% {background: #d10053;}
}

.background p {
  z-index: 999;
  margin: 0;
  color: #ffffff;
  text-transform: uppercase;
  font-family: lato;
  font-size: 70px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translateX(-50%);
}

.elements {
  height: 100vh;
  display: flex;
  flex-flow: row nowrap;
  justify-content: space-around;
  align-items: center;
}

/* ====================
      Squares
=======================*/

.square {
  border: 10px dashed #db0f60;
}

.sq2{
  animation: move1 180s infinite;
  animation-timing-function: linear;
  width: 1110px;
  height: 1110px;
}

@keyframes move1 {
  0% {
    transform: rotate(0deg);
    opacity: 0.5;
  }
  
  50% {
    width: 1000px;
    height: 1000px;
  }
  
  100% {
     transform: rotate(1000deg);
    opacity: 1;
  }
  }

.sq3 {
  width: 600px;
  height: 600px;
  animation: move1 120s infinite;
  animation-timing-function: linear;
}

.sq1 {
  width: 500px;
  height: 500px;
  animation: move1 100s infinite;
  animation-timing-function: linear;
}