<h1>CSS Pulse Effect</h1>

<div class="blobs-container">
  <div class="blob white"></div>
  <div class="blob red"></div>
  <div class="blob orange"></div>
  <div class="blob yellow"></div>
  <div class="blob blue"></div>
  <div class="blob green"></div>
  <div class="blob purple"></div>
  <div class="blob"></div>
</div>

<footer>
  <p>
    Created with <i class="fa fa-heart"></i> by
    <a target="_blank" href="https://florin-pop.com">Florin Pop</a>
    - Read how I created this
    <a target="_blank" href="https://www.florin-pop.com/blog/2019/03/css-pulse-effect/">here</a> - 
    Other projects on
    <a target="_blank" href="https://github.com/florinpop17/work-journal/">Github</a>
  </p>
</footer>

@import url('https://fonts.googleapis.com/css?family=Source+Sans+Pro');

* {
  box-sizing: border-box;
}

body {
  background-image: linear-gradient(to bottom, #cfd9df 0%, #e2ebf0 100%);
  font-family: 'Source Sans Pro', sans-serif;
  margin: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.blobs-container {
  display: flex;
}

.blob {
  background: black;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(0, 0, 0, 1);
  margin: 10px;
  height: 20px;
  width: 20px;
  transform: scale(1);
  animation: pulse-black 2s infinite;
}

@keyframes pulse-black {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.7);
  }
  
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(0, 0, 0, 0);
  }
  
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
  }
}

.blob.white {
  background: white;
  box-shadow: 0 0 0 0 rgba(255, 255, 255, 1);
  animation: pulse-white 2s infinite;
}

@keyframes pulse-white {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
  }
  
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(255, 255, 255, 0);
  }
  
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
  }
}

.blob.red {
  background: rgba(255, 82, 82, 1);
  box-shadow: 0 0 0 0 rgba(255, 82, 82, 1);
  animation: pulse-red 2s infinite;
}

@keyframes pulse-red {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 82, 82, 0.7);
  }
  
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(255, 82, 82, 0);
  }
  
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 82, 82, 0);
  }
}

.blob.orange {
  background: rgba(255, 121, 63, 1);
  box-shadow: 0 0 0 0 rgba(255, 121, 63, 1);
  animation: pulse-orange 2s infinite;
}

@keyframes pulse-orange {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 121, 63, 0.7);
  }
  
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(255, 121, 63, 0);
  }
  
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 121, 63, 0);
  }
}

.blob.yellow {
  background: rgba(255, 177, 66, 1);
  box-shadow: 0 0 0 0 rgba(255, 177, 66, 1);
  animation: pulse-yellow 2s infinite;
}

@keyframes pulse-yellow {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 177, 66, 0.7);
  }
  
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(255, 177, 66, 0);
  }
  
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 177, 66, 0);
  }
}

.blob.blue {
  background: rgba(52, 172, 224, 1);
  box-shadow: 0 0 0 0 rgba(52, 172, 224, 1);
  animation: pulse-blue 2s infinite;
}

@keyframes pulse-blue {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(52, 172, 224, 0.7);
  }
  
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(52, 172, 224, 0);
  }
  
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(52, 172, 224, 0);
  }
}

.blob.green {
  background: rgba(51, 217, 178, 1);
  box-shadow: 0 0 0 0 rgba(51, 217, 178, 1);
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(51, 217, 178, 0.7);
  }
  
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(51, 217, 178, 0);
  }
  
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(51, 217, 178, 0);
  }
}

.blob.purple {
  background: rgba(142, 68, 173, 1);
  box-shadow: 0 0 0 0 rgba(142, 68, 173, 1);
  animation: pulse-purple 2s infinite;
}

@keyframes pulse-purple {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(142, 68, 173, 0.7);
  }
  
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(142, 68, 173, 0);
  }
  
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(142, 68, 173, 0);
  }
}

footer {
    background-color: #222;
    color: #fff;
    font-size: 14px;
    bottom: 0;
    position: fixed;
    left: 0;
    right: 0;
    text-align: center;
    z-index: 999;
}

footer p {
    margin: 10px 0;
}

footer i {
    color: red;
}

footer a {
    color: #3c97bf;
    text-decoration: none;
}