@-webkit-keyframes ball-scale {
  0% {
    -webkit-transform : scale(0);
            transform : scale(0);
  }
  100% {
    -webkit-transform : scale(1);
            transform : scale(1);
    opacity : 0;
  }
}

@-moz-keyframes ball-scale {
  0% {
    -moz-transform : scale(0);
         transform : scale(0);
  }
  100% {
    -moz-transform : scale(1);
         transform : scale(1);
    opacity : 0;
  }
}

@-o-keyframes ball-scale {
  0% {
    -o-transform : scale(0);
       transform : scale(0);
  }
  100% {
    -o-transform : scale(1);
       transform : scale(1);
    opacity : 0;
  }
}

@keyframes ball-scale {
  0% {
    -webkit-transform : scale(0);
       -moz-transform : scale(0);
         -o-transform : scale(0);
            transform : scale(0);
  }
  100% {
    -webkit-transform : scale(1);
       -moz-transform : scale(1);
         -o-transform : scale(1);
            transform : scale(1);
    opacity : 0;
  }
}

.ball-scale > div {
  background-color : #55595C;
  width : 15px;
  height : 15px;
  border-radius : 100%;
  margin : 2px;
  -webkit-animation-fill-mode : both;
     -moz-animation-fill-mode : both;
       -o-animation-fill-mode : both;
          animation-fill-mode : both;
  display : inline-block;
  height : 60px;
  width : 60px;
  -webkit-animation : ball-scale 1s 0s ease-in-out infinite;
     -moz-animation : ball-scale 1s 0s ease-in-out infinite;
       -o-animation : ball-scale 1s 0s ease-in-out infinite;
          animation : ball-scale 1s 0s ease-in-out infinite;
}

.ball-scale-random {
  width : 37px;
  height : 40px;
}
.ball-scale-random > div {
  background-color : #55595C;
  width : 15px;
  height : 15px;
  border-radius : 100%;
  margin : 2px;
  -webkit-animation-fill-mode : both;
     -moz-animation-fill-mode : both;
       -o-animation-fill-mode : both;
          animation-fill-mode : both;
  position : absolute;
  display : inline-block;
  height : 30px;
  width : 30px;
  -webkit-animation : ball-scale 1s 0s ease-in-out infinite;
     -moz-animation : ball-scale 1s 0s ease-in-out infinite;
       -o-animation : ball-scale 1s 0s ease-in-out infinite;
          animation : ball-scale 1s 0s ease-in-out infinite;
}
.ball-scale-random > div:nth-child(1) {
  margin-right : -7px;
  -webkit-animation : ball-scale 1s 0.2s ease-in-out infinite;
     -moz-animation : ball-scale 1s 0.2s ease-in-out infinite;
       -o-animation : ball-scale 1s 0.2s ease-in-out infinite;
          animation : ball-scale 1s 0.2s ease-in-out infinite;
}
.ball-scale-random > div:nth-child(3) {
  margin-right : -2px;
  margin-top : 9px;
  -webkit-animation : ball-scale 1s 0.5s ease-in-out infinite;
     -moz-animation : ball-scale 1s 0.5s ease-in-out infinite;
       -o-animation : ball-scale 1s 0.5s ease-in-out infinite;
          animation : ball-scale 1s 0.5s ease-in-out infinite;
}