.loader {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(255, 255, 255,1); 
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
}

.loader-box .bubble {
    display: block;
    width: 12px; height: 12px;
    float: left;
    margin-right: 6px;
    margin-top: 2px;
    border-radius: 50%;
    background-color: #94c11f;
    opacity: 0;
    transform-origin: center;
    animation-name:pulse;
    animation-duration:1.2s;
    animation-iteration-count:infinite;
}

.loader-box .bubble:nth-child(2) {
  animation-delay:0.12s;
  background-color: #E4E339;
}
.loader-box .bubble:nth-child(3) {
  animation-delay:0.24s;
  background-color: #ffcd1d;
}
.loader-box .bubble:nth-child(4) {
  animation-delay:0.36s;
  background-color: #EA3D3A;
}
 

 @keyframes pulse {
  0% { 
    opacity: .15; 
    transform:scale(1,1);
  }
  24% { 
    opacity: 1; 
    transform:scale(1.2,1.2);
  }
  48% { 
    opacity: .15; 
    transform:scale(1,1);
  }
  100% {} 
}