#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: url("");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 50% 50%;
  
    -webkit-filter: blur(4px);
    -moz-filter: blur(4px);
    -o-filter: blur(4px);
    -ms-filter: blur(4px);
    filter: blur(4px);
    
  }
  #particles-js2 {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: url("");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 50% 50%;
    -webkit-filter: blur(4px);
    -moz-filter: blur(4px);
    -o-filter: blur(4px);
    -ms-filter: blur(4px);
    filter: blur(4px);
  }